@insidesciencee: 🩸 The Science Behind Raynaud’s Phenomenon — When Cold Turns Fingers Blue Follow @inside_science_ for daily wonders from the world of biology, medicine, and human physiology! 🧠 In people with Raynaud’s phenomenon, even mild cold or emotional stress can trigger an extreme reaction — the small blood vessels in the fingers and toes constrict sharply, cutting off blood flow. This sudden vasoconstriction causes the skin to change color — first turning white or bluish as oxygen supply drops — often followed by numbness or tingling sensations. When the affected area is gently warmed, the blood vessels dilate again, restoring circulation. The returning flow brings back normal color and warmth — a visible demonstration of how temperature and stress can directly influence vascular function. ✅ Cold → Vasoconstriction → Reduced blood flow ✅ Warmth → Vasodilation → Restored circulation A striking real-life example of how the autonomic nervous system regulates blood flow — and how the body fights to maintain balance in changing environments. 📍 Concept: Human Physiology & Thermoregulation 🔬 Science: Vasoconstriction, Vasodilation, Blood Flow Dynamics #RaynaudsPhenomenon #HumanBiology #CirculatorySystem #Vasoconstriction #Vasodilation

Maryann ﾒ𝟶 :

oh so i have raynauds.. okay

𓆉 :

😔✌

tuckercarlsonsleftnut :

this happens to my toes very frequently

Ingrid :

Saturoツ :

yellow frost?

JasonF4 :

I just know youll feel like you got needles in your hand after that😭

theking11 :

gang I thought I was chilly

raynard :

can you guess what I don't have

Jess :

and it huuuuuuuuuurts!

ℂừu :

i thought is it named harvard i swear?

~D4RTH•BG~ :

the hot bro

️Leo🥱💤 :

I have this

👻Hello friends, :

อธิบายที

tranbomaydi😎🇻🇳 :

bhhh

billcollector_sigma :

los simpsons transformacion

𝑐ℎ𝑎𝑟𝑙𝑜𝑡𝑡𝑒🤍 :

the original video is above this

เก้าคร้าบบ :

109

SAMI ff :

tfbqvq

Nowza :

noo! you are about to tranform into the Simpsons

isaias³³ :

★

gmnacaramoveondarisal? :

itu knpa?

Grace :

This happens to me when it’s cold

ตoo :

🩷💜•|향기로운 쌀|•❤🧡 :

It needs to be soaked in warm water for it to heal.

🍄mikhasukasquishy :

h cv