Older Adults Exercising On Time

Exclusion Criteria

• •Currently employed or working
• •Extreme sleep chronotypes (measured by the Munich chronotype questionnaire)
• •Participation in any sort of fasting regimen (e.g. intermitted fasting or Ramadan)
• •Experienced recent (\<6 months) adverse life events (e.g., death of partner)
• •Abnormal values in glucose metabolism, thyroid, liver or kidney function, or inflammation markers that after examination of the study doctor need immediate attention of a general practitioner or specialist.
• •Diagnosed clinical depression
• •Diagnosed neurodegenerative diseases (e.g. dementia or Parkinson's disease)
• •Diagnosed sleep apnoea
• •Diagnosed restless legs syndrome
• •Use of beta-adrenergic blocking agents
• •Use of sleep medication\*
• •Injuries or other severe physical conditions (such as active arthrosis) that inhibits physical activity
• •Travelled across time zones one week prior to start of study