Notas sobre recuperação, sono e performance e bastidores de como construímos o Century.

Conselhos práticos baseados em tendências — feitos para combinar com os números que você já tem.

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Heat Acclimation: Why Your Heart Rate Runs High in the Heat and How to Adapt

Oct 14, 2026

13 min read

Heat Acclimation: Why Your Heart Rate Runs High in the Heat and How to Adapt

Heat isn't just uncomfortable, it's a load. Here's why your heart rate climbs at the same pace, what 5-14 days of deliberate heat exposure actually changes in your body, how fast the adaptations fade, and how to build them without wrecking your training.

Latest articles

Heat Acclimation: Why Your Heart Rate Runs High in the Heat and How to Adapt

Hyrox Training: How to Build a Hybrid Engine Without Wrecking Your Recovery

How to Share Your Apple Health Data With Your Doctor (Without Dumping 400 Pages on Them)

Sitting-Rising Test: The 30-Second Floor Test That Predicts Longevity

Cannabis and Sleep: What Weed Actually Does to Your Sleep Stages and HRV

Progressive Overload Explained: How to Get Stronger Without Wrecking Your Recovery

ApoB vs LDL Cholesterol: The Blood Marker That Predicts Heart Risk Better

Mouth Taping for Sleep: Does It Actually Work (and Who Should Avoid It)

Night Shift Work: How to Protect Your Sleep, HRV, and Recovery

Walking After Meals: The 10-Minute Habit That Lowers Blood Sugar

Apple Watch Hypertension Notifications: What the Alert Actually Means

Sleep Efficiency: Why 8 Hours in Bed Isn't 8 Hours of Sleep

Beetroot Juice for Endurance: Does Dietary Nitrate Actually Work?

Walking Pad Zone 2: Does an Indoor Walk Actually Count as Training?

Hot Bath Before Bed: Does a Warm Shower Actually Help You Sleep?

Oura Ring vs Apple Watch: Which Is Better for Sleep and Recovery?

Exercising in Wildfire Smoke: When to Run, When to Move It Indoors

Sleep Divorce: Should You and Your Partner Sleep in Separate Beds?

Apple Watch Fall Detection and Fall Risk: What Your Watch Can Actually Catch

Lactate Threshold Explained: LT1, LT2, and How to Find Yours Without a Lab

Daylight Saving Time and Sleep: How to Shift Your Body Clock in a Few Days

Noise Exposure, Hearing, and Brain Health: What Your Watch Is Quietly Tracking

Bone Density and Strength Training: Why Lifting Weights Protects You After 40

Muscle Loss After 40: What Sarcopenia Actually Is (And What Actually Slows It Down)

Does Cardio Kill Your Gains? What the Interference Effect Actually Says

Weekend Warrior: Is Exercising Only on Weekends Actually Enough?

Swimming and Apple Watch: Why Your Heart Rate Looks Wrong in the Pool (and How to Fix It)

Testosterone and Sleep: How Bad Nights Quietly Lower Your T (and What Your Watch Shows)

Omega-3 for Recovery: What Fish Oil Actually Does to HRV, Soreness, and Sleep

Tart Cherry Juice for Sleep: What the Research Actually Shows

CBT-I for Insomnia: The First-Line Treatment Most People Never Try

How to Increase Running Mileage Without Getting Hurt (What the Evidence Actually Says)

Walking Steadiness: What Your Gait Data Says About Your Health (and How to Improve It)

Best Sleeping Position for Sleep and Recovery: What the Evidence Actually Says

Apple Watch Step Count Accuracy: Why It Misses Steps (and How to Fix It)

Sleep Divorce: Does Sleeping in Separate Beds Actually Improve Your Sleep?

Sleep and Testosterone: What Your Overnight Data Says About Your Hormones

Swimming and Heart Rate: Why Your Apple Watch Loses the Plot in the Pool

Stair Climbing for Cardio: How Many Flights a Day Actually Make a Difference?

Vaping and Heart Rate: What Nicotine Does to Your HRV, Sleep, and Recovery

Apple Watch Heart Rate During Strength Training: Why Your Numbers Look Wrong

Restless Legs at Night: Why Your Legs Won't Settle (and What Your Watch Shows)

Massage Guns, Compression Boots, and Recovery Gadgets: What the Evidence Actually Says

Snoring: What It Actually Means, When It's a Red Flag, and What Your Watch Can Show You

Afternoon Slump: Why You Crash at 3 PM (and What Actually Helps)

Walking Cadence: How Many Steps Per Minute Is Brisk Enough?

How Long Does It Take to Improve HRV? A Realistic Timeline

Interval Walking Training: Why 3 Minutes Fast, 3 Minutes Slow Works

Hiking Zone 2: Why Your Heart Rate Climbs on the Trail (And How to Train It)

Pre-Workout Supplements: What They Do to Your Heart Rate, HRV, and Sleep

Fasted Cardio: Does Training Before Breakfast Actually Burn More Fat?

Sleep and Blood Pressure: Why a Bad Night Shows Up in Your Numbers

Cold Weather Running: Why Your Heart Rate and Pace Change in the Cold

Why Does Your Heart Rate Spike When You Stand Up? Normal vs POTS

Iron Deficiency Without Anemia: Why Your HRV Drops and Your Resting Heart Rate Climbs

Revenge Bedtime Procrastination: Why You Stay Up When You Know Better

Foam Rolling vs Stretching for Recovery: What the Evidence Actually Supports

Iron Deficiency and Your Watch: Why Low Ferritin Shows Up in Your Resting Heart Rate

Apple Watch Heart Rate Notifications: What High, Low, and Irregular Alerts Really Mean

Vitamin D and Sleep: What Low Levels Do to Your Recovery (and How to Test)

Does Apple Watch Track Stress? What It Measures (and How to Check It)

Zone 2 vs Zone 3 Training: What the Middle Zone Actually Does (and When to Use It)

The First-Night Effect: Why You Sleep Badly in a New Place (and How to Fix It)

How Much Cardio Per Week Do You Actually Need? The 150-Minute Rule, Explained

Women vs Men HRV: How Recovery Numbers Really Differ by Sex

Why Am I So Groggy in the Morning? Sleep Inertia, Explained

Anxiety and HRV: How Stress and Worry Show Up in Your Heart Data

Revenge Bedtime Procrastination: Why You Stay Up Late (and How to Stop)

Cortisol Explained: What It Does, What “High Cortisol” Really Means, and What Your Watch Can Tell You

Static vs Dynamic Stretching: What to Do Before and After Your Workout

How to Test VO2 Max at Home: The Cooper Test and Other Field Tests That Work

The 12-3-30 Workout: Does It Actually Work? What the Science Says

How Many Days a Week Should You Work Out? What the Science Says

Best Sleep Position: Side, Back, or Stomach — What the Science Says

Waking Up to Pee at Night: Why It Happens and How to Sleep Through

Blue Light Before Bed: Does Screen Time Actually Ruin Your Sleep?

Smart Ring vs Smart Watch: Which Should You Track Your Recovery With?

Blue Light and Sleep: Do Screens Really Keep You Awake? What the Science Says

Zone 2 Heart Rate by Age: What's Normal and How to Find Yours