Discover which cities lead in size with their urban and metropolitan populations, such as Tokyo, Delhi, Shanghai and, of course, São Paulo.

Idiopathic REM sleep behaviour disorder is associated with a very high risk of Parkinson's disease and a related condition called Dementia with Lewy Bodies.

Discover the top 8 stainless steel water bottles for every need, from leak-proof to rust-free options. Find the perfect bottle for you!

Two travellers took to Instagram to call out Pondicherry for being an unsafe destination for women. However, social media was ...