Biology could also be a very competitive field that seems to have devolved into basically a rat race. How do you compete with your equally capable peer when they work 80 hours a week and you work 40? Yes, its not sustainable, but maybe that's where we are right now (disclaimer, I don't work in Biology, but have friends that do).

pick your projects smarter. Most people doing 80 hour weeks are not doing projects that are turning up publishable results. I was there.