focus: subjective and/or objective memory complaints with mmse > 21 (mci or mild alzheimer's disease, with stable medication for at least 3 months)

mild to moderate depression

corrected-to-normal hearing and vision

for mri: non-magnetic metals inside the body

right handedness preferred

cognitive impairment/ dementia with mmse < 22, severe psychiatric or neurological disease (current and lifetime)

physical health that does not allow physical fitness tests and trainings

benzodiazepin, tricyclic antidepressants

for mri: magnetic metal inside the body, cardiac pacemaker etc.

for liquor: insufficient blood coagulation, insufficient brain pressure