There are some good reads here.
I am 67, just like Jon. I noticed quite a sudden drop in speed 3 years ago. Until then I easily managed over 17mph for a say 20mile ride. This dropped to way under 17 and I tried to find all reasons under the sun. Was it the weather ? Too cold, too windy or was it just age ? I also developed a pain in my left calf which sometimes I had to ease up whilst out so of course that made me slower. Some days were better than others. Through 2023 the cycling did not get any faster again or 2024. I just put up with it. I did have a bout of Covid in summer 2024 but that did not make matters worse. I went on to blood pressure pills because my BP was deemed too high and indeed it was. It never had been. In context, I was a runner from aged 20 to 50, that`s when I gave up because of my knees. I`d always been a cyclist. I thought perhaps the BP tablets would help. No, they did not, although the BP came down. It suddenly occurred to me when my speed dropped. It was about 4 weeks after having a Covid vaccine in the autumn of 2022. Coincidence ? Strangely enough, about the same time I was getting slower on the bike my wife started developing spots all over her body. The doctors or private hospital could not find the cause, I mean we went through everything, diet, bed bugs, washing power etc etc etc. In the end after about 6 months they went. Is that too much of a coincidence, as we both had that Covid shot at the same time ? It was the Moderna one. Would anybody believe me ?
Fast forward to this autumn. After feeling lethargic most times on the bike throughout the spring and summer months and almost on the verge of chucking it in after a terrible ride, I felt wasted, on a 19 mile ride with about 9 miles to go. I checked my BP and it had dropped way too low. I stopped taking the BP tablets and after about 3 days I started to feel `better`. I have been off them now for 2 months, my BP is normal and my legs feel the old me. I was always one to go as fast and as safe as I could. The only time I had an easy ride was after an off ! Anyway, my average time is slowly creeping up but not back to where it was, so perhaps a bit of aging as come in too it as well. Just one more thing. I have not said a word to the doctor about the tablets.
Jon speaks about Bishop`s Hill in Ipswich, I know it well. I have ridden up it, run up it. Ipswich has some lovely hills ? Valley Road, Constitutional Hill, Devonshire Road.
Sorry if I have rambled on a bit