The challenge, named 75 Hard, requires participants to drink about four litres of water for 75 days. Due to excess water intake the women… | Instagram
75 Hard: How 75 days of accountability and the power of routine delivered better habits and happiness
![The New 75 Hard Challenge Rules [PDF] A New Approach to Toughness and Improvement – A BROTHER ABROAD The New 75 Hard Challenge Rules [PDF] A New Approach to Toughness and Improvement – A BROTHER ABROAD](https://abrotherabroad.com/wp-content/uploads/2021/08/75-Strong-Cover-Image-Chopped-JPEG-1024x737.jpg)