Experts conducted a study in several stages. In the first – from 1984 to 1986 – almost 75 thousand Norwegians took part. In the second wave, after 11 years, 33 thousand people were involved. A total of 30 thousand people provided enough data to be included in the study. Scientists also analyzed the data of 920 people with dementia. All watched to death or until the end of the observation period in the summer of 2016.
It turned out that the risk of developing dementia was 40% lower for those who were among 80% with the best physical training. If a person after the first wave of research began to lead a healthy lifestyle and increased his level of physical activity to the maximum, then the risk managed to reduce by 48%.
According to the World Health Organization, there are currently about 50 million people suffering from dementia in the world. Every year, up to 10 million new cases of the disease are recorded. The most common cause of dementia (in 60-70% of cases) is Alzheimer’s disease, which is commonly called the “disease of the 21st century.”