The new “Hardcore” mode on offer that means your character has to eat, drink and sleep is a touch nonsensical. After 48 in-game hours where I did nothing but walk and fight, I checked my FOD, SLP and H20 meters in the nick of time, because they all showed that I only had about 50 points out of 1000 left. I drank some water, ate some fruit, and checked the meters again. They now read 0. As in, after 48 hours they hadn’t ticked from 1000 to 50. They’d ticked from 0 to 50. I could go without drinking or sleeping for weeks. Also, in Hardcore mode food still heals damage you’ve taken, it just takes a few seconds instead of being instantaneous. So you still have the ability to get shot, bring up the Pip Boy, devour 40 packets of instant mash, exit the Pip Boy and keep fighting.