“Hi everybody, I am Dave from UK. Erection has become a problem for me since I put on a lot of weight and fought with obesity for years. I did not want to surrender. I had nothing to lose and ordered Cialis. I take it once in 7 days, this weekend tab, ...

“I take 20 mg Cialis pill and it works as expected but after sexual intercourse I sometimes feel muscle pain in the back and fatigue. I do not know if this is because I work like a stud or it is a side effect. Anyway I am lucky that I gave it a try.”

Scientists are mapping out the 37 trillion cells of the human body and changing what we thought we knew

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BBC Scotland's political editor was diagnosed with an incurable cancer after having a seizure.