A scientifically proven method spread on TikTok tells you when you need to drink water!

A widespread video clip on the TikTok platform revealed a simple way to check the hydration levels of any individual, and it is a very effective method.

The video shows a man pinching the skin at the level of his knuckles, saying: “Check for dryness. Press your fingertip here, and if it goes back down, you are hydrated.”

He can be seen repeating the process during the video, but this time, his skin does not return to its place, but remains pinched, which means that he suffers from dehydration.

“This is known as the skin pinch test or skin swelling test,” explains Dr. Dana Brims, a foot surgeon with more than two million followers on TikTok. “When you are well hydrated, your skin has more elasticity and quickly returns to its original shape after being pinched.” "Otherwise, dehydration leads to decreased skin elasticity and a slower return to normal."

This trick is scientifically backed, and can be an easy way to test your hydration levels.

You can also try applying pressure to the skin on the back of your hand, your abdomen, or on the front of your chest just below your collarbone, according to MedlinePlus. If your skin doesn't quickly return to normal, drink some water.

On the other hand, if your skin is hard to pinch, it may be a sign of edema, which means your body has too much fluid and is swollen.

It is noteworthy that even mild dehydration, when fluid loss equals 5% of body weight, can make you feel a little foggy. Other symptoms include a headache, feeling very thirsty, dizziness or confusion, according to the Mayo Clinic.

It is worth noting that dehydration means a significant lack of water necessary for the body, and its causes are many and varied, but the most common are diseases that stimulate the process of sweating, vomiting, and diarrhea, which lead to the body losing fluids quickly and in large quantities. Poor nutrition, physical activity, hot climate, and restricted diets are also factors in dehydration.

In fact, studies have not been able to provide accurate recommendations about the amounts needed to drink water, because this depends on individual water needs, which depend on many factors, such as health, extent of activity, and even where you live.

Therefore, not everyone can adhere to the recommendation of eight cups a day, because it may not suit everyone, and it may be better to listen to the body to drink the sufficient amount daily.