Science Learning Hub logo
TopicsConceptsCitizen scienceTeacher PLDGlossary
Sign in
Video

Advice on lifestyle

Dr David Stevenson, a senior scientist with Plant & Food Research, bases his advice for health and wellbeing on what scientists are discovering about cellular components called mitochondria. By choosing a lifestyle with plenty of exercise and a well balanced diet that is rich in fruit and vegetables but low in sugar, the mitochondria will be stimulated to function efficiently, lessening the susceptibility to degenerative diseases.

Transcript

DR DAVID STEVENSON
The advice I would give to 13- and 14-year-olds on lifestyle and diet is based on what we are discovering about mitochondria. The more we learn about them, the more important we discover they are in every aspect of life, health and many of the diseases that we get.

We found that inefficient or lazy mitochondria are responsible for or involved in all the major health concerns of modern life such as premature ageing or degenerative diseases, possibly even cancer and heart disease. So the advice is to try and stop them being lazy and inefficient, and tune them up, and one of the best ways of doing that is to do exercise, because they are essential for any kind of movement we do. So the more of it you do, the more you will tune them up.

One of the worst things we found for making mitochondria lazy is eating too much sugar because sugar is metabolised outside the mitochondria. So if you eat nothing but sugar, then the mitochondria don’t really have much to do, and they get very inefficient, so every time you move, they generate heaps of free radicals.

And the third piece of advice is eat plenty of fruit and vegetables, because we know that the polyphenols appear to tune up the mitochondria in a similar way to exercise.

Acknowledgements:
123rf
NZSL

Glossary

Rights: University of Waikato
Published: 18 March 2011
Referencing Hub media

Explore related content

Appears inRelated resources
Sugar on trial

Article

Sugar on trial

Sugar, a luxury in the past but now part of our daily diets, is contributing to weight gain. It’s found ...

Read more
Getting to the heart of diabetes and exercise

Article

Getting to the heart of diabetes and exercise

Manurewa High School’s Health Science Academy took Achievement Standard 90926 Report on a biological issue to a whole new level. ...

Read more
Mitochondria – cell powerhouses

Article

Mitochondria – cell powerhouses

Mitochondria are tiny organelles inside cells that are involved in releasing energy from food.

Read more
Mitochondrion diagram: inner & outer membranes & folded cristae.

Article

More about mitochondria

DNA is packaged up in the nucleus of all cells. However, did you know that DNA is also found in ...

Read more

See our newsletters here.

NewsEventsAboutContact usPrivacyCopyrightHelp

The Science Learning Hub Pokapū Akoranga Pūtaiao is funded through the Ministry of Business, Innovation and Employment's Science in Society Initiative.

Science Learning Hub Pokapū Akoranga Pūtaiao © 2007-2025 The University of Waikato Te Whare Wānanga o Waikato