The first source is a blog post on Medium that discusses a fitness philosophy called the Minimum Effective Dose (MED), which advocates for consistent, small, and sustainable efforts in exercise, diet, and lifestyle to achieve long-term health and fitness goals, particularly for people over 40. The second source is a collection of comments from various individuals responding to the blog post, with many readers sharing their personal experiences and insights about the MED approach, confirming its effectiveness and practicality.Become a supporter of this podcast: https://www.spreaker.com/podcast/medium-deepdive--6355256/support.