https://www.humantruth.info/tags/self_development.html
Main page:
Self Mastery, Self Development and Lifestyle ImprovementHuman Truth Foundation pages (15):
The New Age, in the following sections:
Psychosomosis - the Placebo and Nocebo Effects: Curing and Causing Disease with the Mind, in the following sections:
Broken Toys and Magical Thinking: 1. Fixing Our Broken Toys is Often Too Difficult
The Advantages of Keeping Physically Fit - Good For You, Good For Your Country
The Placebo Effect and the Positive Power of the Mind on Health
The Modern Obesity Epidemic: 5. The Advantages of Keeping Fit
Critical Thinking on Acupuncture: How Does it Work?: 6. The Placebo Effect
The Ironic Nature of Possessions
Not from the Human Truth Foundation, but still relevant (2):
Satanic Life Power, in the following sections: