Sleep - the Key to an Active Life and Combating Burnout

Sleep is often underestimated, but in fact, it plays a central role in our health and performance. A new study published in Australia, the US, and the UK reveals unexpected truths about the relationship between sleep and physical activity, while also warning of the growing threat of climate change.

Sleep Above All

A study by Flinders University in Adelaide challenges the long-held notion that more exercise leads to better sleep. Over 28 million datasets collected from over 70,000 people over a period of three and a half years were analyzed. The results clearly show that quality sleep is a key factor for an active life during the day.

"We found that a good night's rest is a prerequisite for an active day," explains the lead researcher, Josh Fitton. People who slept well were more active the next day. Conversely, more exercise did not guarantee better sleep.

According to the data, the optimal sleep period is between six and seven hours per night. People who sleep that much have the most steps the next day. Professor Danny Eckert summarizes: "Prioritizing sleep may be the most effective way to increase energy, motivation, and the ability to move."

The Threat of Climate Change

Another factor that threatens our health and performance is rising temperatures. A study by the University of Southern California warns of the hidden threat of climate change, which directly affects the quality of our sleep. A 10-degree Celsius increase in nighttime temperatures leads to a loss of about two minutes of sleep per night. In the long run, by 2099, adults could lose between 8.5 and 24 hours of sleep per year due to the heat.

This trend primarily affects people who do not have access to air-conditioned rooms. Thermal stress prevents the body from relaxing and keeps it in a state of heightened anxiety.

The Fight Against Burnout

The 2025 Burnout Report from Mental Health UK confirms the seriousness of the situation. One in five employees took leave due to mental health problems related to stress. The generational gap is widening - Generation Z and millennials are particularly affected.

The data shows that 91% of adults in the UK experienced "high or extreme" stress in the past year. As a major factor in stress, 61% of respondents cited poor sleep. This turns relaxation techniques from a luxury into a necessity in a world that is warming.

Technologies to the Rescue

The Flinders study was made possible thanks to modern fitness trackers and smartwatches. They provide objective data, unlike subjective questionnaires. Accordingly, the "sleep tech" market is booming - forehead sensors, smart thermostats and actively cooled mattresses are becoming essential health tools.

A revision of health policies is expected in 2026. Employers and health insurance companies will begin to promote sleep hygiene programs as a basis for physical activity. Adaptive sleep technologies are facing a major surge in demand.

It is clear that the most effective way to combat stress and improve performance is to sleep well for 6-7 hours. It is not the gym, but the bedroom that determines our health in the coming year.

So, are you ready to give yourself more sleep?