Faselhase

Raise your words, not your voice. It is rain that grows flowers, not thunder (Rumi). Verwaltungsrecht, (Frauen-)Fussball, Geopolitik, investing.

[Agingdoc🩺Dr David Barzilai🔔MD PhD MS MBA DipABLM @agingdoc1]

Statins and risk of type 2 diabetes: mechanism and clinical implications

https://t.co/I24JUplzUM

[Norbert Bolz @NorbertBolz]

Unsere Regierung treibt anständige, vernünftige Menschen in extreme Positionen, die sie eigentlich gar nicht einnehmen wollen.

[Kristie Leong M.D. @DrKristieLeong]

Most people think healthy habits need 30–60 minutes.

They’re wrong.

Here are 3 evidence-backed moves that take 10 minutes or less:

1. Isometric wall sits

2 minutes × 4 rounds.

Meta-analyses show this style of training lowers blood pressure more effectively than regular cardio or weights.

2. Humming on the exhale

Just a few minutes of nasal inhale + humming.

Research shows it can raise nasal nitric oxide 15-fold — supporting sinus health and local immune defense.

3. Cold face dunk

15–30 seconds in ice water, repeated a few times.

Triggers the diving reflex, drops heart rate, and shifts your nervous system out of stress mode fast.

No gym. No long sessions. Just consistency.

Which one are you trying this week?

#HealthTips
#Longevity
#Biohacking

[Joana Cotar @JoanaCotar]

Wie Politik funktioniert:

"Wie kein Verkehrsminister vor ihm griff Schnieder durch und trennte sich von dem erwiesenermaßen unfähigen Bahnchef Richard Lutz. Außerdem beanspruchte er die von Friedrich Merz der Öffentlichkeit präsentierten Sanierungsgelder tatsächlich für die Sanierung der Infrastruktur, was dieser als eine Ungeheuerlichkeit empfand.

Schnieder kritisierte den politischen Kuhhandel, den Merz und Klingbeil verabredet hatten, dass nämlich ein Teil der Gelder für den Sozialstaat entfremdet werden sollte. Das große Vergehen des Verkehrsministers lag nun darin, dass er vor der Fraktion und auch im Kabinettssaal genau diesen Verschiebebahnhof, wie er es nannte, kritisierte und damit die Autorität der beiden Vorgesetzten infrage stellte.

Merz, der ohnehin nur über eine kurze Zündschnur verfügt, löste daraufhin die Sprengung aus.

Schnieder wusste kaum, wie ihm geschah, sein Stuhl hatte plötzlich keine Beine mehr. Um dem stillosen Vorgang noch einen Hauch von Würde zu verleihen, bat er selbst um seine Entlassung. Dem Bundespräsidenten rief er zu: Hol mich hier raus."

Quelle: Pioneer

[Faselhase @CarlGustav42]

@SparSarkasmus Deutscher Friseur. Einzelkämpfer. Ist noch DJ im Nebenjob. Wird wohl einfach Alles enger.

[Agingdoc🩺Dr David Barzilai🔔MD PhD MS MBA DipABLM @agingdoc1]

Neuroinflammation and treatment resistance in major depressive disorder

https://t.co/jDN2AwteZa

[Daniel Tawfik @dantawfik]

Most aging theories focus on accumulated damage. Dr. João Pedro de Magalhães (@jpsenescence) proposed something different: aging might be a continuation of developmental programs that become maladaptive after reproductive maturity. It's a theory that reframes aging not as entropy, but as flawed software.

The conventional hardware-centric view of aging assumes damage accumulates over time. DNA mutations propagate. Repair mechanisms decline. Cellular function degrades. The body wears out.

De Magalhães's hypothesis shifts focus to the software. If DNA is hardware, epigenetics is the operating system that executes genetic instructions during development. The same programs that guide us from a single cell to reproductive maturity might drive degeneration beyond that point.

The lens of the eye continues growing throughout life, eventually causing presbyopia around age 40. The growth programming that shaped the lens during development doesn't shut off. It keeps running, producing changes that were adaptive early in life but become detrimental decades later.

This pattern appears across multiple systems. Hormonal shifts essential for maturation become risk factors for disease. Cell composition changes critical for development set the stage for age-related pathology. The genetic instructions optimized for reaching reproductive age have unintended consequences in the decades that follow.

Epigenetic clocks support this developmental-centric framework. Dr. Steve Horvath developed a biological age predictor by analyzing DNA methylation patterns at around 400 genomic sites. The clock accurately predicts age from conception through old age, ticking with remarkable precision across the entire lifespan.

The predictability matters. Methylation changes aren't random. They follow systematic patterns. Genome-wide hypomethylation occurs gradually, while specific promoter regions show hypermethylation. The orderliness suggests an underlying program, not stochastic damage accumulation.

If aging were purely entropy, we'd expect variability and disorder. Instead, we see symmetry. Men's beards grey symmetrically. Bone density declines on predictable trajectories. Muscle mass loss follows consistent timelines. The patterns point to programmatic processes continuing beyond their adaptive window.

Mice and humans are biochemically similar, but mice age 20 to 30 times faster. The difference isn't repair capacity or environmental exposure. It's developmental tempo. Mouse development runs faster, and the same programs that accelerate maturation accelerate aging.

The hypothesis doesn't dismiss damage entirely. Accumulated cellular damage contributes to functional decline. But de Magalhães suggests the primary driver isn't wear and tear. It's genetic programs executing instructions that were shaped by natural selection to optimize fitness through reproductive years, with no evolutionary pressure to optimize beyond that point.

This theory reframes intervention strategies. Instead of focusing solely on damage repair or protective mechanisms, the developmental-centric view suggests we need to address the underlying genetic instructions that continue executing past their adaptive phase.

Epigenetic reprogramming experiments support this possibility. Yamanaka factors can reset cellular age signatures, suggesting the aging program is reversible. If aging were purely damage-driven, reprogramming wouldn't restore youthful epigenetic states without also repairing all accumulated damage.

The implications extend to longevity research. Caloric restriction, rapamycin, and other interventions that extend lifespan in model organisms might work by modulating these developmental programs, slowing the rate at which maladaptive processes accumulate rather than simply enhancing repair mechanisms.

Critical questions remain. Is aging driven primarily by programmatic instructions, or does damage accumulation play an equally fundamental role? Can we distinguish between the two mechanisms experimentally? Are interventions targeting epigenetic programs more effective than those targeting damage repair?

The hypothesis remains a theory, not established fact. The mechanisms driving aging likely involve both programmatic processes and damage accumulation operating across different timescales and tissues. But the developmental-centric view offers a framework that accounts for the predictability and symmetry observed in aging patterns.

De Magalhães's proposal challenges the assumption that aging is simply the body yielding to entropy. The predictable methylation changes, the systematic progression of age-related pathology, and the success of epigenetic reprogramming all suggest that aging might be as much about software as hardware.

In the Healthspan Research Review, I break down the developmental-centric theory of aging, the evidence from epigenetic clocks, the implications for intervention strategies, and why the distinction between programmatic aging and damage accumulation matters for designing therapies that target the underlying causes rather than downstream effects.

[Daniel Tawfik @dantawfik]

Mitochondrial health is one of the most important determinants of healthspan. A new study from Iñigo San Millán's @doctorinigo lab provides the clearest mechanistic evidence yet that sedentary behavior drives mitochondrial dysfunction at multiple levels simultaneously.

If you are interested in longevity science you should read this paper.

The power of this study lies in its ability to paint a clear picture of what an efficient metabolic engine looks like versus a compromised one.

San Millán's lab compared sedentary versus active healthy adults using muscle biopsies, high-resolution respirometry, and isotope tracing. The findings reveal coordinated impairments across the entire mitochondrial energy production system:

• Complex I and II (the main energy generators) reduced by 30-36%
• Mitochondrial pyruvate carrier (MPC1) down 49% (blocks sugar-derived fuel entry)
• CPT1 activity reduced by 51% (blocks fat-derived fuel entry)
• Cardiolipin content decreased (disrupts the assembly line for ATP production)
• ROS production elevated (more oxidative damage per unit of energy made)

Let's break down what these stats mean.

The MPC1 finding is critical. This transporter moves pyruvate, the end product of sugar breakdown, into the mitochondria where it gets burned for energy. A 49% reduction creates a metabolic traffic jam. Glucose can enter the cell normally (GLUT4 was identical between groups) but can't reach the energy production cycle inside the mitochondria.

The parallel 51% reduction in CPT1 means the same problem exists for fat. CPT1 is the transporter that shuttles fatty acids into mitochondria for oxidation. Both major fuel sources, sugar and fat, are now blocked at the mitochondrial entry point. This dual blockage forces cells into metabolic inflexibility, meaning they lose the ability to switch between burning fat and burning glucose based on what's available.

Cardiolipin is a specialized fat molecule found only in the inner mitochondrial membrane. It acts like scaffolding that holds the respiratory complexes (the actual ATP-making machinery) in the correct position for efficient energy transfer. When cardiolipin content drops, this scaffolding weakens. The machinery still runs, but electrons don't flow as smoothly and more leak out as reactive oxygen species (ROS), creating oxidative stress. Sedentary individuals showed elevated ROS production per unit of oxygen consumed, meaning their mitochondria were less efficient and more damaging.

All this suggests the metabolic engine (the mitochondria) is less efficient and emits much more hazardous byproducts.

During exercise testing, the metabolic inflexibility became visible in performance. Sedentary individuals accumulated 60% more lactate at moderate workloads. Lactate buildup is what causes that burning sensation during hard exercise, it signals that your body is relying too heavily on sugar metabolism because it can't access fat efficiently. They also showed 35% lower fat oxidation rates and hit their crossover point (where the body switches from primarily burning fat to primarily burning sugar) at much lower exercise intensities than active individuals.

The cellular deficits measured in muscle biopsies translated directly to whole-body exercise capacity. The blocked fuel transporters and damaged mitochondrial machinery weren't just lab findings, they determined how much work these people could perform before hitting metabolic limits.

The correlations reveal how tightly coupled this system is. How well your mitochondria could process pyruvate at rest predicted how well you could burn fat during exercise (r=0.65). The amount of MPC1 protein you had predicted your fat burning capacity during exercise. Your blood lactate levels during exercise correlated inversely with how much MPC1 you had (r=-0.73, meaning less MPC1 equals more lactate accumulation).

These aren't separate problems happening in parallel. They're interconnected components of a single energy system. When one part breaks, the whole system compensates poorly and performance degrades as a unit.

The metabolic engine of sedentary individuals sputters, plagued by inefficiencies like increased lactate production, heightened oxidative stress, and an inability to efficiently use an array of fuel sources, which compromise their ability to sustain energy production and manage metabolic stress.

This study establishes that mitochondrial dysfunction is the mechanism linking physical inactivity to accelerated aging. Every longevity intervention ultimately depends on mitochondrial capacity to generate ATP efficiently, handle substrate flux, and maintain redox balance. When MPC1, CPT1, cardiolipin, and respiratory chain function decline simultaneously, cells lose the energetic foundation required to sustain proteostasis, autophagy, DNA repair, and immune surveillance.

Sedentary behavior isn't a passive state. It's an active driver of mitochondrial remodeling that produces measurable molecular atrophy across substrate transport, electron transport efficiency, and metabolic flexibility. Understanding these pathways is understanding how aging accelerates at the cellular level.

[Daniel Tawfik @dantawfik]

Autophagy declines with age across every tissue studied. mTOR activity increases. Cellular damage accumulates. The molecular signature is consistent—elevated phosphorylated ATG13 at serine-258, locking autophagy machinery in the 'off' position.

This same signature appears in ME/CFS patients. Not as a consequence of aging, but as a feature of the disease. High mTOR activity. Suppressed autophagy initiation. Cells unable to clear damaged proteins and dysfunctional mitochondria—leaving them vulnerable to metabolic stress.

A University of Wisconsin–Milwaukee trial tested whether low-dose rapamycin could restore autophagy function in ME/CFS patients by inhibiting mTOR. The hypothesis wasn't about treating fatigue symptoms. It was about correcting the cellular maintenance dysfunction that might be driving them.

Patients received 6 mg rapamycin once weekly for 90 days. Researchers tracked two autophagy biomarkers in circulation: BECLIN-1, a core protein that signals autophagy activation, and phosphorylated ATG13, which reflects whether autophagy machinery can actually initiate.

By days 60-90, BECLIN-1 levels increased 40-50%. Phosphorylated ATG13 dropped more than two-fold. The molecular signature shifted from suppressed autophagy to restored autophagy—and it was measurable in blood.

Molecular changes tracked with clinical response. Increases in BECLIN-1 correlated positively with improvements in functional capacity (r ≈ 0.44), energy, emotional well-being, and quality of life, while correlating negatively with fatigue severity. The patients who improved were the same individuals showing the strongest autophagy signal.

Responders were biologically distinct from non-responders. Clinical responders exhibited up to three-fold increases in BECLIN-1 and early, sustained reductions in phosphorylated ATG13. Partial responders showed intermediate changes. Non-responders demonstrated little consistent shift in autophagy markers.

Autophagy dysfunction isn't uniform—even within a single disease cohort. Some individuals had locked autophagy machinery that responded to mTOR inhibition. Others didn't. The biomarkers separated the groups before clinical outcomes diverged.

The dosing regimen mattered. At 6 mg once weekly, rapamycin produced no significant changes in metabolic, lipid, hematologic, or inflammatory safety labs over 90 days. Adverse events were infrequent and transient—contrasting with the metabolic complications reported in daily or high-dose regimens used in transplant medicine.

Weekly low-dose rapamycin appears to engage autophagy without triggering the glucose intolerance, dyslipidemia, or immunosuppression seen with continuous dosing. The intermittent schedule allows mTOR to cycle between suppression and restoration—preserving anabolic function while periodically activating cellular repair.

The timeline for restoration was 60-90 days. Not acute. Not immediate. Cellular repair systems don't respond to brief interventions—they require sustained engagement to shift the balance from damage accumulation to clearance and renewal.

Rapamycin extends lifespan in every organism tested, from yeast to mice. The mechanism has been debated—is it immune modulation, metabolic remodeling, reduced inflammation, or something else? This study suggests the answer may be simpler: rapamycin restores the cellular maintenance system that's supposed to prevent damage from accumulating in the first place.

Autophagy doesn't just clear debris. It removes dysfunctional mitochondria, degrades misfolded proteins, recycles damaged organelles, and reduces inflammatory signaling from cellular wreckage. When autophagy is impaired, all of those processes stall—and the downstream effects resemble accelerated aging.

The study wasn't placebo-controlled, so causality can't be definitively established. But the tight alignment between clinical improvement and restoration of autophagy signaling provides rare human evidence that mTOR-autophagy dysfunction is measurable, modifiable, and potentially linked to functional recovery.

BECLIN-1 and phosphorylated ATG13 emerged as candidate biomarkers for autophagy function in humans. They're detectable in circulation, responsive to mTOR inhibition, and correlated with clinical outcomes. That makes them potentially useful for monitoring whether autophagy-targeted interventions are working—before waiting for long-term health outcomes.

This has implications for how aging interventions should be evaluated. A single measurement after two weeks of treatment won't capture autophagy restoration. Serial measurements over months reveal whether the system is responding—and whether molecular changes align with functional improvement.

The decisions about whether to use rapamycin for longevity optimization will depend on understanding which individuals have impaired autophagy that's responsive to mTOR inhibition, what dosing schedule maximizes benefit while minimizing metabolic risk, and whether restoration of autophagy biomarkers predicts meaningful health improvements over decades.

The molecular signature of suppressed autophagy appears in aging. It appears in ME/CFS. And it's reversible—if the machinery is intact and responsive to mTOR inhibition. This study shows that pathway is measurable, modifiable, and potentially linked to functional recovery in humans.

[Kristie Leong M.D. @DrKristieLeong]

🚨 Your gut makes 90% of your serotonin, not your brain.

That’s right, while influencers push a montage of mood supplements, the science shows your microbiome is quietly running the show on mood, sleep, energy, and even how you handle stress.

Here’s the deal:

Your vagus nerve keeps your gut and brain in constant conversation.

When your microbiome thrives (thanks to fiber + fermented foods), you get steadier moods, easier sleep, and better resilience.

But the vicious cycle hits hard:

Antibiotics wipe out good bacteria, ultra-processed foods + emulsifiers damage the gut lining, and chronic stress makes it worse.

Suddenly, your metabolism, immunity, and mental health suffer.

Studies even show transferring bacteria from depressed people can trigger depressive symptoms in healthy ones.

Hype aside, this is backed by real mechanisms.

Simple action plan:

1. Cut most ultra-processed foods. (they starve your microbes)

2. Add fermented foods daily: sauerkraut, kimchi, yogurt, miso.

3. Ramp up fiber slowly — especially prebiotic types your bacteria love.

4. Support your vagus with breathing practices.

Feed your gut well, and it feeds you back with better days. No fancy supplements required.

Who else has noticed their mood or sleep improve after prioritizing fermented foods and fiber? 👇

#GutHealth
#Microbiome
#FermentedFoods

[Robert W. Lambert @rlambertII]

@KarlPfleger Statins unregulate klotho, which may slow aging and be neuroprotective. See: https://t.co/QLvEOw7EWy and https://t.co/AfFhXL7b4l

[🍁☘️Canadian Fletchy 🇨🇦 @Darth_Pingu]

BREAKING: They've changed the name

[Kristie Leong M.D. @DrKristieLeong]

🚨 Forget the $200 gut tests and miracle probiotics—your microbiome doesn't need a fancy fix.

Microbiome science keeps confirming it: there's no shortcut pill. The real power comes from unglamorous basics:

1. Diverse fiber from whole foods

2. Slashing ultra-processed junk high in additives and refined oils

3. Deep consistent sleep that supports digestion and gut repair

4. Moving your body regularly - walking, stretching, strength training

5. Managing stress before it disrupts your gut

Why it matters:

Ultra-processed foods tank microbial diversity and fuel inflammation, while eating 30+ different plant foods weekly dramatically boosts it (American Gut Project data).

Your gut ecosystem thrives on what you consistently feed it, not hype.

Action plan:

• Add 1–2 gut-supportive foods daily, such as yogurt, kimchi, sauerkraut, miso, kombucha, or almonds.

• Build the rest of your plate around rainbow vegetables, beans, nuts, seeds, and other fiber-rich whole foods.

• Cut back on ultra-processed foods, move your body consistently, and protect your sleep so your gut has the best environment to thrive.

#GutHealth
Microbiome
#FiberIsKing

[Kara @UTDKarra]

Repost if you think Gianni Infantino is the worst FIFA president ever.

[Alerta News 24 @AlertaNews24]

⚽️ | URGENTE - MUNDIAL 2026: Algunos miembros de la junta ejecutiva de la FIFA están pidiendo la renuncia del presidente Gianni Infantino y preparando una demanda en su contra tras revelaciones de que la FIFA dobló las reglas para favorecer a un jugador y un país, según especulaciones en línea.

[Rob @Rob__Friar]

@henrywinter Infantino and FIFA have turned the comments off, that tells you all need to know
The football community should not allow this to happen. Every team should stand together and threaten to boycott the tournament if Balogun is allowed to play by FIFA.

[le F 🖕 @Fiftyyellowvinc]

@lequipe BOYCOTT sur ce match
Je ne lmvais jamais regarder ce match
Avec ces décisions politiques du dictateur @POTUS et de la @FIFAWorldCup
Honte a ce pays de merde et cette organisation corrompu

[IvIatthes @IvIatthes]

Als Fussball Fan kann man gegen dieses Kaspertheater wenig tun.
Hier werden Regeln durch Macht gebogen, fast das sie brechen.

Alles was ich tun kann ist mir den Mist nicht anzuschauen und die #WM einen zweiten Tag zu #boykottieren.

#Integrität und #Fairness sind die Pfeiler eines Turniers und wenn das nicht mehr gegeben ist, ist ein Wettkampf nichts wert. #FIFA #UEFA

[Dr. Gichuho Mungai, Ed.D., MBA, M.Sc., PGD, B.ED. @GichuhoMungai]

DEAR BELGIUM... If there is anything I learnt at VUB...

"We worden slaven op het moment dat we de sleutels van de definitie van de werkelijkheid volledig aan iemand anders overhandigen."

INTEGRITY IS PRICELESS! ALL TEAMS SHOULD BOYCOTT THE WORLD CUP! LET FIFA AND THE WHITE HOUSE PLAY EACH OTHER!, AND ISSUE EACH OTHER, WHATEVER RAINBOW COLORED CARDS THEY DEEM FIT, TO WHATEVER END! LEST WE FORGET... FIRST CAME SOCCER, THEN FIFA, NOT THE OTHER WAY ROUND!

"Nous devenons esclaves dès l'instant où nous remettons entièrement entre les mains d'autrui les clés de la définition de la réalité."