Resume de l’article : Des toilettes, une pieuvre et du sport : l’actu des sciences

Article summary and answer:

The article presents three short science news. The first one is about a toilet that can analyze human waste to detect diseases. The second news is about a pieuvre that can change the color of its skin in less than a second. The third news is about a study showing that practicing a sport helps to reduce the risk of Alzheimer’s disease.

The answer to your question is: yes, practicing a sport helps to reduce the risk of Alzheimer’s disease.