Happy Thursday, Zapien — Here’s what we’re diving into this week:
Forever,
Karol, Martin, Simon & Andy
Popular Discussion
Cycle Syncing: Hype or Your Monthly Superpower
Fifteen years ago, if you’d mentioned “cycle syncing,” most women would have blinked at you. Men might have guessed it was something to do with syncing Spotify playlists. Now, it’s a buzzword on wellness podcasts, Instagram feeds, and in group chats.
If you’ve ever wondered why one week you feel like conquering the world and the next you want to cancel plans, curl up in bed, and survive on carbs, it’s not in your head. Hormonal shifts can change everything from your energy and mood to your appetite, digestion, and libido. That week you feel bloated for no reason? Hormones. That sudden burst of motivation? Also hormones.
Cycle syncing is about working with these changes, not against them. It’s the practice of matching your nutrition, workouts, work, and social calendar to the natural rhythm of your menstrual cycle. The goal? Less fighting your body, more flow.
Men vs Women: The Hormone Plot Twist
Men’s hormones run on a neat 24-hour cycle. Testosterone peaks in the morning, giving them more focus, competitiveness, and often a higher libido. By afternoon, energy and motivation dip. By evening, testosterone is at its lowest, which is why most men feel more relaxed and less inclined to take on big challenges at night.
Short Hack Long Life
Sleep timing beats sleep quantity.
Your body runs on a 24-hour clock called your circadian rhythm. When you go to bed and wake up at different times each day, you break this clock.
Five Simple Fixes:
📆 Same bedtime and wake time every day (weekends included)
⏰ Set a bedtime alarm
🌞 Get sunlight within 30 minutes of waking (light exposure regulates your internal clock)
🚫 No screens 1-2 hours before bed
🧘♀️ Create a 15-minute wind-down routine (dim lights → warm shower → read 5 pages)
The payoff comes fast: Better recovery, sharper focus, higher energy within days. Your heart health depends on when you sleep, not just how much.
Free Tool of the Week
Blood Testing GuideYour Health Journey Starts With Your Blood ✔ Know what to test and why—based on your goals and budget ✔ Get trusted lab options, at-home kits, and insurance tips ✔ Follow a simple step-by-step guide with checkboxes | |
WhatsApp Group Summary
Gut Health
Discussion:
Members reported better digestion and more stable blood sugar when combining certain probiotics with a varied, plant-rich diet.
Consider this:
• If taking a probiotic, choose one with strains tested in human studies.
• Add a few new vegetables, legumes, or grains each week to increase dietary variety.
Longevity Nutrition
Discussion:
Members shared that balanced, fiber-rich carbs from whole foods were linked to better energy and metabolic health than very strict low-carb diets.
Consider this:
• Focus on whole food carbs like oats, quinoa, and legumes instead of refined products.
• Aim for a daily fiber intake close to the general guideline of 25–35 g.
Heart Health
Discussion:
Members noted that looking beyond a single cholesterol value can give a clearer picture of heart health, and some pointed to the Mediterranean diet as one approach with supporting research.
Consider this:
• Ask your doctor which blood markers are most relevant for your heart health.
• See if a Mediterranean-style diet (vegetables, fish, healthy fats) could work for you.
Siim Land
Longevity educator, anthropologist, and eight-time best-selling author. Ranked #9 on the Rejuvenation Olympics leaderboard. Focused on evidence-based health, nutrition, and biohacking strategies to support slowing biological aging.
Siim's Trusted Brands
At Home Tests & Kits
 | SelfDecode SelfDecode |
| Influencer |
Gadgets & Equipment
 | Bon Charge Blue Light Blocking Glasses |
| Influencer |
 | Lumoral Lumoral |
| Influencer |
Supplements
 | BiOptimizers Magnesium Breakthrough |
| Influencer |
 | NoordCode Pure Collagen |
| Influencer |
 | DoNotAge Pure Omega 3 |
| Influencer |
Siim's Health Routine
Routine:
• Wake-Up: Early light + walk
• First Meal (~10 AM): Protein shake + supplements
• Midday: Work blocks
• Workout: Strength, cardio or hike
• Sauna: 4×/week, 15–20 min
• Dinner (~5 PM): Mediterranean meal
• Evening: Blue light block, cool sleep setup
• Sleep (~10 PM): 7–8 h, dark room
Workout:
• Strength: 3×/week, push–pull–legs
• Zone 2: 2×/week (~60 min)
• HIIT: 1×/week (4×4)
• Steps: 10–12k daily
• Sauna: Post-training recovery
Diet:
• Fasting: 2 meals/day
• Mediterranean: Fish, legumes, vegetables, olive oil