ظافر نوري

ألصمـت ؛ هـو صَديقــــي ألـــذي كُلمــا سـَاٰءَ بــــــي ألمــزاج كان أول ألحَــاضـــــــــــــــــــريـن

[Dr. AK 🇮🇳 @docakx]

Home surveillance camera captures the shocking moment when a man sitting on a chair, completely engrossed in his phone, stands up to stretch his arms and something unexpected happens.

When someone sits still for a long time blood pools in the legs. Standing suddenly lets gravity pull even more blood downward away from the heart and brain.

The body normally tightens blood vessels and speeds the heartbeat within seconds to keep pressure stable. If that reflex lags even a little blood pressure drops and the brain briefly receives too little oxygen.

That sudden shortage of blood to the brain made him lose balance and fall. He recovered quickly once on the floor because blood could flow back to the brain again.

This episode is called orthostatic syncope (also known as postural syncope). It happens when blood pressure drops right after standing up from sitting.

[Sci Nature News @SciNatureNews]

🧠 Your brain is constantly building connections.

Under a microscope, neurons can be seen extending tiny branches, exploring their surroundings and connecting with other neurons.

These new connections form synapses — the communication points that allow brain cells to pass signals.

This microscopic process is part of neuroplasticity, the brain’s remarkable ability to learn, adapt and reorganize itself. ✨

[ظافر نوري @abusbah1]

@DrNaturalCare Hello

[دار المأمون للترجمة والنشر @daralmamoon]

صدر العدد الفصلي الرابع لسنة ٢٠٢٢ من مجلة "كلكامش" الناطقة باللغة الانكليزية إلكترونيًا. وتضمن ملفا خاصا استذكارا للراحل جبرا إبراهيم جبرا لمناسبة ذكرى رحيله. ومواد متنوعة تُعنى بالثقافة والفن العراقيين:

لتصفح هذا العدد أو تحميله يرجى الضغط على الرابط:
https://t.co/ICr69ysm9M

[Vintage Maps @vintagemapstore]

Japanese pictorial map of the Middle East (1942)