Don’t worry; mild forgetfulness is actually a normal part of growing older for many people. His forgetfulness may even be caused by treatable side effects from medication, or perhaps a vitamin B12 deficiency.
However, there are several other more serious conditions that may induce memory loss. The main symptoms of Alzheimer’s include: confusion during routine tasks or familiar settings, difficulty with spatial judgments, and sharp changes in mood or personality. In any case, scheduling an appointment with your doctor to evaluate his condition is a great way to put your mind at ease.