One Year Fast — a 52-week human experiment
Hi, I'm Alfie Hammersham — a 52-week human experiment

The One Year Fast. 52 weeks. 3 days a week. One human experiment.

I'm Alfie Hammersham, and for one full year I'm fasting three days each week — choosing the days week by week depending on how my body and life are showing up — and openly logging what happens to my body, my mind, and the quieter parts in between. No supplements to sell. No protocol to push. Just curiosity, biomarkers, and notes from the kitchen. Follow along on YouTube @OneYearFast.

Current week
1 / 52
Fasts logged
0
Cadence
3 days / week
Started
Jun 21, 2026

The five dimensions

A whole person, not a single number.

Fasting touches more than the scale. I'm tracking five overlapping pillars and trying to notice where they agree, where they argue, and where the numbers go quiet.

Physical

Weight, blood pressure, VO2 max, DEXA composition, metabolic panels. The body keeps an honest ledger.

Mental

Focus, working memory, decision fatigue. Does cleared metabolism actually clear the mind?

Emotional

Mood, irritability, patience. The feelings that arrive when the easy comforts step aside.

Psychological

Cravings, identity, the loud little voice that bargains. Watching it without obeying it.

Spiritual

Stillness, gratitude, the older practice underneath fasting. What the quiet says, if anything.

The schedule

52 weeks at a glance.

Three fasting days each week — but which three is decided week by week, in response to how I'm actually feeling. Real-time updates live in a public Google Calendar.

Starting June 21, 2026

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Mon
Tue
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Thu
Fri
Sat
Sun
Fast day Eat day To be decided Day passed

Live Google Calendar

Open in Google Calendar

New baseline · Metabolic cart test

VO2 Max: 49.1mL/kg/min

A clinical graded exercise test placed cardiorespiratory fitness in the 97th percentile for the 61-year-old male demographic, with clear ventilatory thresholds to anchor Zone 2 and Zone 5 training.

See the full report
VT1 (aerobic)
110 BPM
VT2 (anaerobic)
127 BPM
Max HR
153 BPM
Peak power
120 W

New baseline · DXA scan

Lean mass 117.8lb

A June 2026 dual-energy X-ray absorptiometry scan set a precise body composition baseline — including exceptional bone density (T-score +1.9) and an exact measurement of visceral fat to track from here on.

See the full report
Body fat
31.1 %
Fat mass
53.3 lb
A/G ratio
1.25
Visceral fat
2.06 lb

New baseline · Indirect calorimetry

RMR 1,598kcal/day

A June 2026 VO2 Master indirect calorimetry test measured resting metabolism directly — 30% faster than the statistical average for age, weight, height, and sex, with a TDEE of 1,918 kcal/day at baseline activity.

See the full report
Metabolism score
+30 %
Resting HR
56 bpm
HRV
48.6
TDEE
1,918 kcal

The dashboard

Biomarkers, openly logged.

Weekly weight and BP, periodic VO2 max, DEXA scans, and full metabolic panels. Live data — every reading is added to the trend.

Weight

Each logged entry

Blood pressure

Systolic / Diastolic

VO2 Max

Cardiorespiratory fitness

DEXA

Body fat % and lean mass (lb)

Cholesterol

Quest Diagnostics · latest

Total cholesterol

mg/dL

Ref < 200

HDL cholesterol

mg/dL

Ref ≥ 40

Triglycerides

mg/dL

Ref < 150

LDL cholesterol

mg/dL

Ref < 100

Chol / HDL ratio

Ref < 5.0

Non-HDL cholesterol

mg/dL

Ref < 130

Glucose & kidney function

Quest Diagnostics

Fasting glucose

mg/dL

Ref 70–99

BUN

mg/dL

Ref 7–20

Creatinine

mg/dL

Ref 0.7–1.3

eGFR

mL/min

Ref ≥ 90

Total cholesterol

mg/dL

HbA1c

%

Body fat

%

VO2 max

ml/kg/min

Latest video

From the kitchen.

All videos on YouTube
Week 1 — Why I'm fasting 3 days a week for a year

June 26, 2026

Week 1 — Why I'm fasting 3 days a week for a year

Not medical advice

I am not a medical expert. This website documents a personal experiment born out of curiosity. I am not offering medical advice, nor am I encouraging anyone to replicate this protocol. Consult a doctor before making any drastic dietary changes.