I have a masochistic interest in catchily named social media self-improvement challenges, so I already knew about “75 hard” – 75 days of drinking eight pints of water, doing two 45-minute workouts, eating clean and, endearingly, reading 10 pages of nonfiction – before it made its recent comeback. Paddy McGuinness has reignited interest, crediting the regime started in 2019 by podcaster Andy Frisella for his transformation from a normal soft-bodied human into an uncanny mass of bronzed abs and pecs.