Alzheimer’s patient, 90, says skiing and other activities keep him mentally sharp

Six years after his Alzheimer’s diagnosis, 90-year-old Zelik (Zel) Bocknek refuses to slow down — and he believes his active lifestyle is key to keeping his symptoms at bay.

Bocknek, a retired business owner in Toronto, Ontario, was 84 when he began experiencing minor memory slips, such as forgetting the day of the week and not knowing the answers to basic questions.

After being diagnosed with mild cognitive impairment due to Alzheimer’s, he was offered the opportunity to join a clinical...