India, Aug. 25 -- A steaming cup of hot coffee or tea is often what people reach out for in the morning to ward off grogginess and get the quick energy to begin the day. But while it perks you up instantly, it comes with the hidden downside of an energy slump later in the day.

Lifestyle coach Nidhi Nahata, founder of Justbe, shared with HT Lifestyle that caffeine, especially during the monsoon, may be harmful because of dehydration risks.

"Caffeine blocks adenosine, a brain chemical that helps us relax, which makes us feel alert for a while. But once it wears off, the body slumps, bringing sudden fatigue, cravings, irritability, and brain fog. It gives a quick high, but the crash that follows lasts much longer," Nidhi described the side...