India, Sept. 29 -- If your idea of relaxing involves sweating profusely in a tiny room, a leading heart surgeon is right there with you. Dr Jeremy London, a US board-certified cardiovascular surgeon with over 25 years of medical experience, took to Instagram on September 29 to drop knowledge on why saunas aren't just a spa treat - but a longevity power move. Also read | Can regular sauna use support brain health? Physician Dr Kunal Sood reveals that it can lower risk of dementia

In his video, Dr London gave a glimpse into his personal sauna routine. Sitting inside a wooden cabin, he shared, "I like to sauna in the evenings cause it really punctuates my day." But he's not just lounging around for fun - there's some heavy-duty science happ...