Baseline for activity is too low - 30 minutes five days a week. To prevent brain tissue loss one should walk 35km per week, it is one hour daily. And that amou

Baseline for activity is too low - 30 minutes five days a week. To prevent brain tissue loss one should walk 35km per week, it is one hour daily. And that amount is to stop decline of mental capabilities, one need to increase that amount of exercise or add fasting or weight training to start to regain "younger" brain. So I am not impressed.