India, Sept. 11 -- The late afternoon is not the time when people are usually feeling very productive. For working professionals in particular, a dull headache can set in at around 3 pm, and the accompanying tiredness and difficulty in concentrating can make getting stuff done difficult.

According to Dr Deepak Shankar Ray, a common factor that can cause the situation yet often remains ignored is dehydration. In an interaction with HT Lifestyle, Dr Ray pointed out that it is surprisingly easy to go for several hours without drinking enough water when one has a busy office routine.

"Individuals might delay taking their water breaks while in meetings, rely more on tea or coffee, or simply fail to drink while they are concentrating on their...