Topic
Testosterone & TRT
Low testosterone, what it actually does, and what the UK evidence says about replacement.
I co-authored the British Society for Sexual Medicine's 2023 guidelines on testosterone deficiency — this is the topic I write, speak, and consult on more than any other.
Jeff’s writing on this
Jeff’s media on this
- Mar 2026BBC Radio 4Sliced Bread — Testosterone Replacement Therapy
- Feb 2026The SunGet your sex drive back — a cheap test and simple fix
- Feb 2026BBC NewsMen's health on BBC News
- Feb 2026ITV NewsMen urged to check testosterone levels in middle age
- Aug 2025Men's FitnessThe truth about testosterone replacement therapy
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