This is an exceptionally clear and practical breakdown
A 2026 UK review of the A1/A2A mechanism, tolerance, the 56h half-life sleep tax, the record 2026 dementia data (~35% lower risk at 23 cups), energy drinks and the under-16s ban , the EFSA 400 mg / NHS 200 mg limits, the BDNF link and the HGF/c-Met case and why caffeine hygiene, not a peptide, comes first Read the full review Psychopharmacology & Cognitive Neuroscience 22 June 2026 Dihexa for SSRI & Antidepressant Brain Fog: Emotional Blunting, Memory & the 2026 UK Review My mood is better on my antidepressant so why do I feel foggy, flat and half-switched-off? A record 8.89 million people in England were prescribed antidepressants in 2024/25 ( NHSBSA : 92.6 million items), and an estimated 4060% of SSRI users report emotional blunting
These effects include the development and maintenance of male secondary sexual characteristics, stimulation of muscle and bone growth, and regulation of libido and mood
One regulatory note worth holding alongside his framing: the FDA placed several of the peptides he discusses (including BPC-157, CJC-1295, and Ipamorelin) onto a Category 2 list in 2023, citing a lack of safety data rather than reported harms
This broad growth factor modulation creates an environment conducive to healing across multiple tissue types
