These days I tolerate heat MUCH better than I once did and am COLD in the winter time. I literally can't get my apartment warm enough in the winter - and if I didn't need to sleep in darkness I could open my apartment winds to allow a nice cross-breeze for any temps < 80 and sleep well (bedroom window looks over the lit parking lot). As far as outdoor activities are concerned, hiking at 87 or 90 degrees is PERFECT! I'm like that purring cat stretched out in the hot sunshine