Water

You can drink yourself to death:
http://www.sund.nu/docs/artikel.asp?art=280&tem=3
Translated into English

Water

If it is too hot it could damage your skin.
http://www.articlesnatch.com/Article/How-Hot-Water-Can-Damage-Your-Skin/446379

Anything Could Cause Problem

All the time we are told that this or that could cause obesity, weight loss, baldness, heart problems, infertility and even death. I am sure that the journalists that write those articles are sincere and probably thinks that THIS the public needs to know. And I am equally sure that the scientists who spent their time and other peoples money researching this is also honest and driven by a want to know and make the world a better place.

And, yes, it is true - Too Much of Everything Can Cause Problems.

But seriously ....