I should add that when I was «off» the 5:2 fasting I was still fasting of sorts as I don't very often eat at night, don't eat breakfast and used to eat at
about 10 am,
since starting 5:2 however I was stretching out my first meal until at least 12
noon most days, so in effect I have been fasting in different ways for 6 months and now weigh 10 lbs more than when I started.
I.e. solar activity was high in most of the 20th centiry and then peaked in
about 1985, together with a 20 - 30 year heat lag (
since it remained high until 1996 as well), and oceans take a few decades to equilbrate, (the same as summer takes
about 6 weeks to reach maximum temperature after the summer solstice, and every day it takes a few hours after
noon to reach maximum temperature), so the earth has taken a few decades to reach maximum temperature after the long high in solar activity during the 20th century, and will now go down in temperature over the next few decades, with now both a negative PDO, and reduced solar activity.