Answers to Science Questions

My grandfather, father, aunt, all my siblings and I have had cancer. Are we an example of cancer being hereditary? The...

I just wanted to pick up on the point you mentioned about inflammatory disease. I have rheumatoid arthritis and have...

I lost my sense of smell. Can I get it back again?

Do gay men respond to pheromones from other men, as men do from women and women from men?

If smell is so important, how do we smell each other through deodorants and perfume?

I'm sure that when I was younger, personal hygiene wasn't such a big thing, especially shaving body hair.

When a woman gets pregnant, why do some men suffer false pregnancies?

What's the possibility of getting some repair in the case of damage caused by glaucoma?

Do we have stem cells when we're adults? How long do they last? Can't specialised cells divide?

Can stem cells be used to cure vitiligo?

I'm a diabetic. What do you think is the realistic timescale to cure diabetes?

What are the plant cell walls made from?

What is is success rate for stem cell therapy after heart attacks?

I stopped taking antidepressants a while ago. After two weeks I couldn't sleep all night and then wouldn't be...

Is it possible that life on Mars managed to hitch a ride on a meteorite and started life on Earth?

If a meteorite hit the earth, could life be blown onto other planets?

Do you think it's possible that future man could have conquered time travel and be coming back to look at us?

Could bomb testing make the world fall apart or cause tsunamis?

如果有类似的大学ses, do you think Elvis might still be alive and making hits in another?

Can you still get brain damage even if your mobile phone is switched off?

Are probiotics worth taking?

I tried probiotics for two weeks and now I've got the trots - what's happening?!

I suffer from Irritable Bowel Syndrome (IBS). If I eat probiotics, it seems to prevent the gurgling symptoms. I read...

Is it safe to swallow chewing gum?