Episode 8: Celsius caffeine vs Red Bull: Which has more?
February 24, 2026 · 9:55
Celsius has more caffeine and less sugar than Red Bull; choose based on sleep, blood pressure, and metabolic risk.
Caffeine and sleep
Explore the complex relationship between caffeine consumption and sleep quality, and how finding the right balance impacts recovery, testosterone production, and overall performance. Learn strategies for optimizing your caffeine intake without compromising the restorative sleep essential for men's health.
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The essentials for caffeine and sleep — then explore the latest posts below.
The science of caffeine free energy drinks: How to boost focus without the crash
Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist
Jan 10, 2026 · 12 min read
Non-caffeinated energy boosters, including caffeine-free energy drinks, may help support focus without a “crash,” largely by addressing fundamentals that influence energy and performance, such as hydration, electrolyte balance, and nutrient cofactors involved in energy metabolism. This approach differs from caffeine, which can reduce perceived fatigue by blocking brain adenosine receptors while sleep pressure continues to ...
Ultrahuman ring vs Oura: Which smart ring is worth it for men’s sleep and recovery?
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Jan 09, 2026 · 12 min read
Neither Ultrahuman Ring Air nor Oura is a clear clinical winner for men’s sleep and recovery; the best choice is the ring you will wear nightly and use to change habits. Oura is typically cheaper upfront, Ultrahuman often costs more upfront, and both are trend trackers—not diagnostic tools. “A smart ring can’t diagnose you, but ...
Why do i get so hot when i sleep: The science of night sweats and overheating
Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist
Dec 05, 2025 · 15 min read
You get hot in your sleep when the normal nighttime drop in core body temperature of about 0.5 to 1.0 °C (1 to 2 °F) is disrupted, prompting the hypothalamus to open skin blood vessels and activate sweating to dump heat. The good news is that the trigger is often changeable, such as room setup, alcohol, stress, ...
Celsius vs Red Bull caffeine: Which has more? Science shows
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Nov 23, 2025 · 15 min read
Neither is universally better: Celsius is typically lower in sugar and calories but higher in caffeine, while classic Red Bull is lower in caffeine but much higher in sugar. Here is how to choose the lesser risk when you’re deciding between Celsius vs Red Bull, or skip both when you should. “When men ask me ...
Why do energy drinks make me tired? The crash mechanics and the best cutoff before bed
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Nov 21, 2025 · 14 min read
Energy drinks can make you tired because caffeine and sugar can create a short-lived spike followed by a “crash,” and caffeine can also disrupt sleep long after the can is empty. If you keep asking “why do energy drinks make me sleepy,” the answer is often a mix of brain chemistry, blood sugar swings, hydration, ...