05/03/2026
Many women tell me that their energy started feeling different in their mid-30s or 40s.
They notice stronger afternoon crashes, slower recovery after poor sleep, or more brain fog during the day.
This isn’t imagined.
Several biological changes can influence energy after 35:
• Gradual decline in muscle mass
• Changes in insulin sensitivity
• Fluctuations in hormones such as oestrogen
These shifts can make blood sugar swings feel stronger, which is why the 3PM crash often becomes more noticeable.
The encouraging part is that meal structure can significantly improve stability.
Understanding the pattern is the first step.