I have always asked questions, which got me into trouble as a kid with teachers. Later, it became an asset in my chosen career.
In retirement, I feel it is important to remain mentally active. Reading books, listening to music, playing solitaire, driving my scooter in Thai traffic, writing my autobiography, making videos for YouTube as a creative process. I keep up with world affairs.
The Romans had an expression, "mens sana in corpore sano." A healthy mind in a healthy body. So I pay attention to my physical fitness as well.
I even get some mental stimulation from some posters on ASEAN, in trying to come up with invective and phrasing that stays within forum rules. There are others with whom I enjoy a civilized discourse.
I have no idea whether this will prolong my life; however, it will make the rest of it more interesting.