Uploaded August 2026 | Updated September 2026, 2 weeks ago

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Dr. Alexander Pastuszak, leading urologist, fertility scientist, and biotech entrepreneur, dives deep into the science and future of male birth control, the truth about testosterone therapy and male fertility, the efficacy and challenges of current and emerging male contraceptive options, why semen analysis is an outdated tool for fertility assessment, the impact of environmental and lifestyle factors on declining sperm counts, and practical, evidence-based advice for men aiming to protect their reproductive and overall health.

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X - https://x.com/apastusz?lang=en
Paterna website: paternabio.com
WIRED article: wired.com/story/startup-says-it-grew-human-sperm-in-a-lab-and-used-it-to-make-embryos
LinkedIn handle: linkedin.com/company/paternabiosciences

▶️Chapters:
00:00:00 Introduction
00:02:51 Why Male Birth Control Still Isn’t Available
00:09:51 Non-Hormonal Male Contraceptives
00:16:48 Hormonal Male Contraceptives
00:23:28 Safety, Demand, and Timeline
00:29:59 Vasectomy and Reversibility
00:34:12 Sperm Decline and Environmental Factors
00:45:58 Why Semen Analysis Falls Short
01:01:56 Varicoceles, Medications, and Fertility
01:12:26 Testosterone, Fertility-Safe Options, and Future Technology


Watch the video till the end and let me know your thoughts in the comments.
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Rena Malik, MD is a urologist and pelvic surgeon on youtube to educate people about all things urology including erectile dysfunction, how to increase testosterone, problems with sex, premature ejaculation, urinary leakage, or incontinence, overactive bladder, urinary tract infections, prostate issues and more.

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▶️Check out these playlists:
• Penis Problems?! Erectile Dysfunction, Premature Ejaculation & More: bit.ly/3wwivzS
• Overactive Bladder Treatment: bit.ly/3hMzBoP
• How to Increase Testosterone: bit.ly/2T9QJKV
• Women’s Sexual Health: tinyurl.com/4ykxuupc
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▶️DISCLAIMER: This video is purely educational and does not constitute medical advice. The content of this video is my personal opinion and not that of my employer(s). Use of this information is at your own risk. Rena Malik, M.D. will not assume any liability for any direct or indirect losses or damages that may result from the use of the information contained in this video including but not limited to economic loss, injury, illness, or death.
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