Hi this is really true from the age of 15 to 28 my hair was getting thinner and thinner I tried everything to make it look thicker but nothing worked and one day I had a cup of black tea and suffered a panic attack that scared the hell out of me so I stopped drinking anything with caffiene in it and about 6 months later I started getting new hairs on my head and it gradually got so thick I couldnt believe it ive never had thick hair until I cut out caffiene it really works. I read somewhere that caffiene is a chemical the plant releases to keep insects away from it so if it can do that what does it do to the human body????????