WHY WE NEED SUNLIGHT TO STAY HEALTHY: Professor Michael Holick, Boston University

The sun is good for us:  The soothing effect of sunbathing stems not only from the warmth and relaxation experienced but also from the energising effect of bright light; everyone knows the good mood that only a sunny summer's day can bring.

The sun thus gives rise to a wealth of positive effects:                                                                                                           

   

 www.goldenbaum-media.de/Datentausch/bergmann/controversial_sunshine_eng.wmv 

http://youtu.be/XxMCuzZvZkQ

http://youtu.be/C3cm9BM1Ca4