Author: Alistair Brownlee
It's good to put on some lube under your wetsuit, so I tend to use a lot of baby oil on my arms and legs. It stops you chafing and helps you get your wetsuit off after the swim.
I was lucky enough to go to a school which gave flexibility around education and sport. We had a 1-hour, 30-minute lunch break, and were able to train during this time.
It's better to train for 4-5 hours a week than to do ten hours one week then nothing for two weeks. It helps your body adapt and also maintains your fitness.
I don't know whether endurance sports attract obsessional people, or training for endurance sports makes people obsessional... it's the chicken and the egg.