My grandmother who lived to her mid 90s did a lot of arm exercises to get the blood circulation going. She would stand up and just fling her arms up and down.

My grandmother who lived to her mid 90s did a lot of arm exercises to get the blood circulation going. She would stand up and just fling her arms up and down. Saw this earlier this year (it's a body airbag for old people in case they fall. Invented by a Chinese so eastern way haha), reminds me of the bike helmet some Swedes demonstrated a few years back https://www.youtube.com/watch?v=p9W6wNfzsIE https://www.youtube.com/watch?v=p9W6wNfzsIE