Why your hair turns gray.

Ever wondered why your hair inevitably will turn gray as you grow up? Scientists have almost found that out why and are doing their studies to develop anti-graying strategies. According to Federation of American Societies for Experimental Biology, the drop in the level of enzyme called catalase is the reason.
As it appeared: "The process starts when there is a dip in levels of an enzyme called catalase. That catalase shortfall means that the hydrogen peroxide that naturally occurs in hair can't be broken down. So hydrogen peroxide builds up in the hair, and because other enzymes that would repair hydrogen peroxide's damage are also in short supply, the hair goes gray".

Blonds are luckier on this part as grey hair don't stand out as much as those with dark hair!

FACEBOOK can harm your health!

It seems like Facebook and other social networking websites are substituting natural meetings between people. The face-to-face interaction between people is replaced by hours and hours spent on online socialising. Why would they do the effort to go out to meet friends and family while they can do so in bed with their laptops over their laps!

This might seem that it made life easier, however, a UK expert thinks online social networking websites might harm your health.

Dr Aric Sigman told the BBC, "a lack of face-to-face networking could alter the way genes work, upset immune responses, hormone levels, the function of arteries, and influence mental performance". It could also "increase the risk of health problems as serious as cancer, strokes, heart disease, and dementia".

What is special about face-to-face communication is that you could understand people in front of you more clearly through their voice intonation and their body language. It is very easy to misunderstand your friends online because what is said in a joking context must not be aquired as a serious issue. And you cannot actually know unless you hear and see the person in front of you. As the doctor said, these websites "undermines people's social skills and their ability to read body language".

Plastic surgey born in wars

The War and Medicine exhibition that concluded on the 15th of February at the Wellcome Trust drew attention to the inevitable relationship between war and human injuries leading to the advancement of medicine.

War injuries taught physician how to develop their treatments and update them according to the different cases they experience in soldiers. This introduced us to new fields of medicine, such as plastic surgery that was founded in World War One (WW1), between 1914-1918.

During that war, the New Zealand born Harold Dolf Gillies used to treat wounded soldiers of the British Army across the fields of Belgium and France in 1914 and 1915. Gillies was developing new ways of fixing deformed faces of the soldiers. He developed the idea of using wide skin from different parts of the body for facial wounds closure. A soldier's face may be attached to his shoulder by a piece of skin to cover his wounded cheek.

War had a positive effect that it urged physicians to develop new ways and treatments to deal with the different cases and the pressure of the number of soldiers being injured at the same time. This may be the only benefit of wars.

In 1917, The Queen's Hospital opened in London provided with over 1000 beds. And that's where Gillies and his colleagues developed plastic surgery. Around 11,000 operations were performed on over 5,000 men, mostly soldiers with facial wounds.

Plastic surgery's roots started back then and it's still growing until today.