04/03/2026
Training lesson from this week’s run.
Everything was identical to my usual weekly run.
Same track.
Same fuel.
Same time.
Same training around the run.
Yet I could only run half the distance.
The difference?
I was two days before my period.
I actually knew I was feeling exhausted beforehand. But because I’m training for HYROX in April, I had the mindset of “I have to do the run.”
Instead of adjusting my training to suit what my body clearly needed that day.
The outcome?
Completely and utterly exhausted.
Research is increasingly showing that women may benefit from adjusting training and nutrition across the menstrual cycle.
In the first half of the cycle, rising oestrogen often supports higher intensity training and better recovery.
In the second half of the cycle, progesterone rises, which can increase metabolic stress and make endurance work feel harder.
In the days leading into your period, fatigue and reduced exercise tolerance are common.
This run was a reminder for me that even when we’re motivated and committed to a goal, it still pays to listen to your body!
Sometimes the smartest thing you can do for your training is adjust, not push harder.
And yes… there’s research to back this up! But I didn’t need it, my body was telling me all I needed, I was choosing to ignore it 😉