However, the cancer risk can be considerably reduced by physical activity.
Studies indicate a possible correlation between factors that disrupt our circadian rhythms, such as prostate cancer institute youtube to light during the night or eating late in the evening, and the risk of developing cancer. Furthermore, studies have repeatedly demonstrated that regular moderate physical exercise can significantly reduce cancer risk.
However, so far it has not been clear whether the time of day when physical activity takes place plays any significant role. Morning exercise protects — late chronotypes in particular In collaboration with the Pompeu Fabra University in Barcelona and Manolis Kogevinas and Gemma Castaño-Vinyals from the Barcelona Institute for Global Health ISGloballead author Jakob Weitzer and co-author Kyriaki Papantoniou from the Division of Epidemiology of the Medical University of Vienna have investigated the hypothesis that sporting activities in the morning potentially reduce the risk of prostate and breast cancer more than sporting activities at other times of day.
The hypothesis is based on results from an experimental study showing that physical activity in the afternoon or evening can delay the melatonin rhythm.
The human body primarily produces the hormone melatonin during the night and some studies have associated this hormone with a lower cancer risk. They found that the protective effect of exercise on the risk of developing prostate or breast cancer is potentially greatest when the physical activity takes place between — in the morning.
However, in men this effect was just as strong for regular sporting activity in the evening — hrs.
The participants' chronotypes, that is to say their preferences for sleep and activity at a particular time of day, likewise influenced the results: morning exercise — appeared to be particularly good prostate cancer institute youtube participants who essentially prefer to be active in the evening — so-called "owls" or late chronotypes.
That might explain our results," point out the researchers.