New Delhi, Oct. 3 -- Tamannaah Bhatia's fitness trainer Siddhartha Singh recently shared 3 signs of dehydration. He revealed the 'secret' code to water needs of every individual that differs from person to person.

Describing the importance of staying hydrated, Siddhartha Singh in a post on Instagram on October 2 provided 3 signs of dehydration.

Besides revealing the signs of dehydration, he answered the most important question about the required quantity of water intake per day. Snubbing the myth of 8 glasses of water in a day, he suggested that a human body needs "30-35 ml per kg of body weight."

Elaborating with an example, he said that an individual, who weighs 70 kg should consume at least 2.1-2.5 litters of water in a day.

The po...