Not setting boundaries.
There are so many different ways that we end up sabotaging our health - often unintentionally.
Gemma explains, "I got into a routine where I was so exhausted that I couldn't sleep. But I still wouldn't go to bed at a reasonable time. I'd stay up to 11, 12 or even one in the morning - not doing anything really but pottering around. And be completely the exhausted the next day..."