Biology · KS3 Y8 · Health & Disease
Energy balance & health
Energy balance & healthFree10:27Heddy Score 3 of 7, below the standard
What you need to know
- Food provides energy, and eating more energy than the body uses leads to the extra being stored, mostly as fat.
- Exercise uses energy, but over time the body tends to adjust its total daily energy use, so workouts alone rarely cause much weight loss.
- Cutting the energy taken in from food has the biggest effect on losing fat.
- Regular activity is still very good for health: it lowers long-term inflammation and stress and benefits the heart.
In this clip
Runs 10:27, from 0:00 to 10:27 of the full video.
Heddy ScoreSeven checks every clip must pass before students see it: trusted, on the map, accurate, focused, accessible, safe, and proven by students.3/7, Below the standard
See the seven stars
- Trusted source · passed. The creator's own upload, live and playable here.
- On the map · not judged yet. A teacher watched it: it mainly teaches this map topic.
- Spec-true · not judged yet. Accurate, and right for the current UK specification.
- Focused · passed. One idea, short enough to watch in one go.
- Accessible · passed. Good captions, clear sound and pictures.
- Safe for children · not judged yet. Right for 11 to 16 year olds, with no sales pitch.
- Proven · not judged yet. Earned from our students: they learn from it, find it helpful and watch it to the end.
Our students
Not enough students yet
Our own students' answers. These are what move ★7 Proven.On YouTube
How the Heddy Score works5.92M views · 190K likes · Kurzgesagt – In a Nutshell 25.8M subscribers
As reported by YouTube on 2026-11-02. Not part of the Heddy Score.Why we picked it
A clear animated explainer on energy in versus energy out, and why activity matters for health even when it does little for weight.
Kurzgesagt – In a Nutshell on YouTubechecked 2026-10-22
Plays from youtube-nocookie.com. No YouTube cookies until you press play.