Jason from Dad OS

Fatloss

The cardio mistake costing you 6 hours a week (and zero new muscle)

Jul 14, 2026

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2 min read

The cardio mistake costing you 6 hours a week (and zero new muscle)

After 40, walking burns the fat — but only strength training keeps the muscle. Here’s the add.

Jason from Dad OS

Vacation isn’t the enemy of recomp. Autopilot is.

Jul 7, 2026

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1 min read

Vacation isn’t the enemy of recomp. Autopilot is.

You can’t out-discipline a week off. But three autopilot habits keep you from sliding.

Jason from Dad OS

Nutrition

[Bonus] How to BBQ the 4th without unraveling 6 weeks of progress

Jul 1, 2026

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1 min read

[Bonus] How to BBQ the 4th without unraveling 6 weeks of progress

Enjoy the cookout, keep the progress. The 80/20 plan for the 4th of July.

Jason from Dad OS

Nutrition

The 3 PM crash isn’t a sleep problem. It’s a waist problem.

Jun 30, 2026

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1 min read

The 3 PM crash isn’t a sleep problem. It’s a waist problem.

That afternoon wall isn’t about last night’s sleep. It’s about blood sugar and belly fat.

Jason from Dad OS

Strength

The 30-minute recomp window: fit it between the kids and the calendar

Jun 23, 2026

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1 min read

The 30-minute recomp window: fit it between the kids and the calendar

Three 30-minute lifts beat one 90-minute weekend grind. Here’s where to find the time.

Jason from Dad OS

[Bonus] What to actually put on your Father’s Day list (a health-first gift guide)

Jun 18, 2026

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2 min read

[Bonus] What to actually put on your Father’s Day list (a health-first gift guide)

Skip the ties and gadgets. Here are the gifts that actually make you a healthier, stronger dad.

Jason from Dad OS

Nutrition

The protein math that changes everything after 40

Jun 16, 2026

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2 min read

The protein math that changes everything after 40

Most dads over 40 are 40 grams short. Here’s the per-meal math that fixes it.

Jason from Dad OS

The Father’s Day gift your kids can’t buy you

Jun 9, 2026

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2 min read

The Father’s Day gift your kids can’t buy you

The best thing you can give your family is a dad who’s healthy enough to be there. Here’s the 3-move checkup.

Jason from Dad OS

The 2-hour evening you’ve been missing (and how to get it back)

Jun 2, 2026

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1 min read

The 2-hour evening you’ve been missing (and how to get it back)

Summer daylight gives you a hidden window. Here’s how to use it instead of losing it to your phone.

Jason from Dad OS

How to shut off your brain and fall asleep in 5 minutes

May 26, 2026

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1 min read

How to shut off your brain and fall asleep in 5 minutes

A military-tested sleep technique that works like a kill switch for your racing mind.

Jason from Dad OS

[Bonus] The long weekend that sets the tone for your whole summer

May 21, 2026

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1 min read

[Bonus] The long weekend that sets the tone for your whole summer

Memorial Day is your starting line. 3 moves to make this the summer you don’t waste.

Jason from Dad OS

Your desk is aging you 10 years. 3 moves to undo it.

May 19, 2026

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1 min read

Your desk is aging you 10 years. 3 moves to undo it.

Three exercises that reverse the damage of 8+ hours of sitting — faster than your morning coffee.

Jason from Dad OS

Supplements

The 20-minute stress-killing workout (no gym, no gear)

May 12, 2026

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1 min read

The 20-minute stress-killing workout (no gym, no gear)

A bodyweight circuit built to crush cortisol and boost energy when life is a mess.

Jason from Dad OS

Nutrition

Summer is 6 weeks out. Here’s your pre-game checklist.

May 5, 2026

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1 min read

Summer is 6 weeks out. Here’s your pre-game checklist.

A simple 3-move plan: one strength habit, one nutrition swap, one recovery ritual. Start now.

Jason from Dad OS

You don’t have a fat problem. You have a muscle problem.

Apr 28, 2026

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2 min read

You don’t have a fat problem. You have a muscle problem.

Why most fat loss plans for dads 40+ backfire — and the 3-move fix that actually works.

Jason from Dad OS

Fatloss

[Bonus] Your Saturday already counts. You just aren’t getting credit for it.

Apr 23, 2026

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1 min read

[Bonus] Your Saturday already counts. You just aren’t getting credit for it.

Why weekend yard work counts as a real workout — and the Harvard study that proves it.

Jason from Dad OS

Nutrition

Stressed about money? Your cortisol is the real debt.

Apr 21, 2026

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2 min read

Stressed about money? Your cortisol is the real debt.

Financial stress triggers the same hormonal cascade as physical danger — 3 moves to break the cycle.

Jason from Dad OS

Supplements

The supplement 73% of men over 40 are missing

Apr 14, 2026

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4 min read

The supplement 73% of men over 40 are missing

One cheap, well-studied supplement most guys skip — and how to know if you’re deficient.

Jason from Dad OS

Supplements

[Bonus] Tax Day stole your sleep. Here’s how to get it back tonight.

Apr 9, 2026

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2 min read

[Bonus] Tax Day stole your sleep. Here’s how to get it back tonight.

A 5-minute wind-down protocol that works even when your brain won’t shut off. Timely for tax week.

Jason from Dad OS

Nutrition

You don’t need more time. You need fewer decisions.

Apr 7, 2026

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2 min read

You don’t need more time. You need fewer decisions.

Decision fatigue is stealing 2+ hours a day. Three systems to reclaim your evenings.

Jason from Dad OS

Nutrition

[Bonus] Easter candy, family dinners, and your gut. A survival guide.

Apr 2, 2026

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2 min read

[Bonus] Easter candy, family dinners, and your gut. A survival guide.

How to enjoy Easter weekend without the guilt...the 80/20 approach for real dads.

Jason from Dad OS

Nutrition

The muscle you’re losing right now (and don’t even notice)

Mar 31, 2026

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2 min read

The muscle you’re losing right now (and don’t even notice)

After 40, you lose ~1% of muscle per year. Here’s the 3-move resistance plan to reverse it.

Jason from Dad OS

Longevity

Your battery died over winter. Here’s how to recharge it in 7 days.

Mar 24, 2026

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2 min read

Your battery died over winter. Here’s how to recharge it in 7 days.

A 7-day spring energy reset: morning light, protein timing, and one evening swap.

Jason from Dad OS

Longevity

The one number that predicts how long you'll live (it's not your weight)

Mar 18, 2026

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2 min read

The one number that predicts how long you'll live (it's not your weight)

Your grip is telling you something. Are you listening?

Jason from Dad OS

Jason from Dad OS

The cardio mistake costing you 6 hours a week (and zero new muscle)

Vacation isn’t the enemy of recomp. Autopilot is.

[Bonus] How to BBQ the 4th without unraveling 6 weeks of progress

The 3 PM crash isn’t a sleep problem. It’s a waist problem.

The 30-minute recomp window: fit it between the kids and the calendar

[Bonus] What to actually put on your Father’s Day list (a health-first gift guide)

The protein math that changes everything after 40

The Father’s Day gift your kids can’t buy you

The 2-hour evening you’ve been missing (and how to get it back)

How to shut off your brain and fall asleep in 5 minutes

[Bonus] The long weekend that sets the tone for your whole summer

Your desk is aging you 10 years. 3 moves to undo it.

The 20-minute stress-killing workout (no gym, no gear)

Summer is 6 weeks out. Here’s your pre-game checklist.

You don’t have a fat problem. You have a muscle problem.

[Bonus] Your Saturday already counts. You just aren’t getting credit for it.

Stressed about money? Your cortisol is the real debt.

The supplement 73% of men over 40 are missing

[Bonus] Tax Day stole your sleep. Here’s how to get it back tonight.

You don’t need more time. You need fewer decisions.

[Bonus] Easter candy, family dinners, and your gut. A survival guide.

The muscle you’re losing right now (and don’t even notice)

Your battery died over winter. Here’s how to recharge it in 7 days.

The one number that predicts how long you'll live (it's not your weight)

// Dad OS //
Dads over 40 are losing energy, muscle, and time. Not you. Dad OS — one cheat code. 300 words. Every Tuesday.

Quick Links

Subscription

Jason from Dad OS

The cardio mistake costing you 6 hours a week (and zero new muscle)

Vacation isn’t the enemy of recomp. Autopilot is.

[Bonus] How to BBQ the 4th without unraveling 6 weeks of progress

The 3 PM crash isn’t a sleep problem. It’s a waist problem.

The 30-minute recomp window: fit it between the kids and the calendar

[Bonus] What to actually put on your Father’s Day list (a health-first gift guide)

The protein math that changes everything after 40

The Father’s Day gift your kids can’t buy you

The 2-hour evening you’ve been missing (and how to get it back)

How to shut off your brain and fall asleep in 5 minutes

[Bonus] The long weekend that sets the tone for your whole summer

Your desk is aging you 10 years. 3 moves to undo it.

The 20-minute stress-killing workout (no gym, no gear)

Summer is 6 weeks out. Here’s your pre-game checklist.

You don’t have a fat problem. You have a muscle problem.

[Bonus] Your Saturday already counts. You just aren’t getting credit for it.

Stressed about money? Your cortisol is the real debt.

The supplement 73% of men over 40 are missing

[Bonus] Tax Day stole your sleep. Here’s how to get it back tonight.

You don’t need more time. You need fewer decisions.

[Bonus] Easter candy, family dinners, and your gut. A survival guide.

The muscle you’re losing right now (and don’t even notice)

Your battery died over winter. Here’s how to recharge it in 7 days.

The one number that predicts how long you'll live (it's not your weight)

// Dad OS //Dads over 40 are losing energy, muscle, and time. Not you. Dad OS — one cheat code. 300 words. Every Tuesday.

Quick Links

Subscription

// Dad OS //
Dads over 40 are losing energy, muscle, and time. Not you. Dad OS — one cheat code. 300 words. Every Tuesday.