Another topic which has been talked about a lot in the media of late is the damaging and long term effects of too much sunbathing.
People are going on holiday and not applying suntan cream often enough or using one with the right sun protection factor (SPF) and they generally think that getting sunburnt is part of the tanning process. People back in the UK are also using sunbeds for too long or too often which greatly increases the chances of getting skin cancer.
In terms of exercise if you have been sunburnt you will find it hard and uncomfortable to train which might mean having to have a couple of days break from your training regime, which will delay you in achieving or maintaining your goals.
If you train outdoors even in the winter time you should wear a suitable sport / sweat / water resistant SPF cream to help protect and moisturise your exposed skin.
Visit http://www.netdoctor.co.uk/health_advice/facts/sunbathing.htm for useful tips on how to sunbathe safely and avoid becoming sunburnt.