Environmental Psychology

5: Giving Up Smoking | The Twinstitute

Twins test the best way to kick a habit, see if hand-washing keeps you healthy and try to improve concentration.

6: Learn a Language | The Twinstitute

Identical twins test the best way to learn a new language, attempt to look younger and test an easy way to lower your calorie count.

4: Better Brain | The Twinstitute

Twins find out if its possible to get a better brain, repel mosquitoes and get fit just by watching TV!

1: Get Thin Fast | The Twinstitute

Identical twins put competing health theories to the test. This episode tests the best way to lose weight, improve memory and beat pain wi...

3: HIIT versus Easy | The Twinstitute

This episode explores the best way to get fit, beat nausea, and discovers if you can enhance brain performance.

The impact of shift work | Horizon

Couples who are struggling with their sleep are helped by a sleep expert.

The impact of jet lag | Horizon

Experimenters are inducing jet lag by waking Aldo up several hours early, what will the impacts be?

How does lack of light affect our body clock? | Horizon

Aldo is now living in the bunker with very limited artificial light to see the effects on his body clock.

Beginning of the experiment | Horizon

The experiment begins with Aldo being isolated in a nuclear bunker away from people and outside influences.

How easily do our body clocks keep time? | Horizon

Aldo is trying to keep track of time without any external cues in the bunker.

The role of SCN and melatonin | Secrets of the Body Clock with Terry Wogan

Our body clock is explained in terms of the brain, the SCN, the hormone melatonin and the percepti...

2: Sleep Deprivation | The Twinstitute

Identical twins put health theories to the test. Twins test the best way to beat fatigue and discover the effect of smartphones on IQ.

Running on Empty: The Secret of Sleep | Trust Me, I'm a Doctor

Dr Phil Hammond discovers the physical and psychological effects of a lack of sleep, explores the problems of ...

The Secret Life of Your Bodyclock | Horizon

Why are people more likely to have a heart attack at eight in the morning or crash their car on the motorway at two in the aftern...

Secrets of the Body Clock with Terry Wogan

Sir Terry Wogan discovers why timing is everything as he explores the human body clock, a ticking timepiece that lives in our brai...