- Zone 2
- Steady cardio at a pace where you can still talk in full sentences, but not sing.
- VO2 max
- The most oxygen your body can use in hard exercise. A good measure of fitness; higher is better.
- Intervals
- Short hard efforts with easy recovery in between, such as 30 seconds fast, 90 seconds slow.
- 4 × 4
- Four rounds of 4 minutes hard with 3 minutes easy in between. Also called Norwegian intervals.
- Hypertrophy
- Muscle growth.
- Mobility
- Moving your joints freely through their full range.
- Creatine
- A well-studied supplement that supports strength and muscle.
- Fibre
- The part of plant foods you don't digest. It feeds healthy gut bacteria and keeps you full.
- Hormone therapy (HRT, MHT)
- Medicine that replaces hormones that fall at menopause. Only a doctor can prescribe it.
- NAD
- A molecule cells use for energy. Supplements are sold to raise it, but evidence in people is limited.