Circadian rhythms evaluation

Strength: research into circadian rhythms has contributed to our understanding of the adverse consequences of sleep deprivation

• Knutsson (2003) found that there is a relationship between shift work and poor health: shift workers are three times more likely to develop heart disease
• This is a strength because it helps us to understand how work can affect our health and therefore we can improve our work lives and consequently our health

Strength: research into circadian rhythms has contributed to our understanding of the action of drugs on the body

• It has helped researchers understand the times of the day when drugs are most effective, which has meant that guidelines have been developed for a whole range of medications 
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