August 21, 2014 02:09 am | Updated 02:09 am IST
We feel cold when exposed to low temperature in an AC enclosed room for long, but why does body completely turn warm after certain period of time at the same temperature?
Letminlal Haokip, New Delhi
What is the reason for the sound which comes when we crack our knuckles? It gives a kind of pleasant and relaxed feeling after having done that. Is it detrimental to the body in any way? Why can’t it be done again before a certain time has passed?
Vaibhav Rathi, Pune, Maharashtra
Comments have to be in English, and in full sentences. They cannot be abusive or personal. Please abide by our community guidelines for posting your comments.
We have migrated to a new commenting platform. If you are already a registered user of The Hindu and logged in, you may continue to engage with our articles. If you do not have an account please register and login to post comments. Users can access their older comments by logging into their accounts on Vuukle.
