Many people (especially elderly) have been locked in during the summer. Also the majority of holiday trips have been cancelled, leading to a lower 25(OH)D blood serum level as usual. The body can store vitamin D up to several months.

Im Dezember gibt es tats\xe4chlich, eine signifikante \xdcbersterblichkeit, die es allerdings so in den letzten 50 Jahren auch schon gab.
— Ben Marten \U0001f642 (@BenMarten) January 22, 2021
Wir wissen, dass #Lockdowns keinen/kaum nutzen bringen. Daher k\xf6nnte man vermuten, dass hier zus\xe4tzlich auch noch die Lockdowntoten dabei sind... pic.twitter.com/nYjviDs51T
The genesis of a pandemic.
— Pace \U0001f642 (@theotherphilipp) February 25, 2021
The #Corona crisis began with a panopticon of absurd events, improbable coincidences and outright lies.
Time for a review of the impossibilities.
A thread \U0001f9f5 pic.twitter.com/PLbETVv2p8
Cortisol is known as the 'stress hormone' and is a silent killer. Cortisol levels are increased by:
— Dr. Simon \u30c4 (@goddeketal) February 17, 2021
\U0001f449\U0001f3fc Fear & anxiety
\U0001f449\U0001f3fc Constant stress
\U0001f449\U0001f3fc Social isolation
The media propagated fear and political measures are counterproductive. They shorten our lives. https://t.co/6BZ34pVBjw
One thing I've been noticing about responses to today's column is that many people still don't get how strong the forces behind regional divergence are, and how hard to reverse 1/ https://t.co/Ft2aH1NcQt
— Paul Krugman (@paulkrugman) November 20, 2018