- Zone 2
- Steady cardio at a pace where you can still talk in full sentences, but not sing.
- 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.
- Loaded carry
- Walking while holding something heavy, like shopping bags or dumbbells.
- Mobility
- Moving your joints freely through their full range.
- Leucine
- A building block of protein that helps switch on muscle building. Meat, fish, eggs, dairy and soy are rich in it.
- Creatine
- A well-studied supplement that supports strength and muscle.
- Omega-3 (EPA, DHA)
- Healthy fats found mostly in oily fish such as salmon, herring and sardines.
- Fibre
- The part of plant foods you don't digest. It feeds healthy gut bacteria and keeps you full.
- Time-restricted eating
- Eating all your meals within a set window of the day, for example 8am to 6pm.
- Glucose
- Blood sugar.
- Rapamycin, metformin
- Prescription drugs that some experts take hoping to slow ageing. Not proven for that, and never part of your plan.