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This week's evidence-graded reads
Omega-3 Index — EPA + DHA in Red Blood Cells
The omega-3 index measures EPA + DHA as a percentage of total fatty acids in red blood cell membranes. Strong inverse association with cardiovascular mortality. Target 8–12%; most Western adults sit at 4–6%.
Lp(a) — Genetic Cardiovascular Risk
Lipoprotein(a) is a genetically fixed atherogenic particle — lifestyle changes cannot lower it. Elevated Lp(a) raises cardiovascular and aortic-valve risk independent of LDL. Test once; if elevated, tighten everything else.
Worry Window — Scheduled 15 min
One fixed 15-minute daily slot for worrying — write every concern down, sort actionable from non-actionable, then redirect any worry outside the window back to the slot. Reduces all-day rumination by giving it a container.
Consistent Wake Time — ±30 min
Pick a wake time and hold it within a 30-minute window every day, weekends included. Wake time anchors the circadian clock more reliably than bedtime — hold it for two weeks and bedtime usually self-corrects.
4-7-8 Breathing for Sleep Onset
Inhale 4 s → hold 7 → exhale 8. Four cycles at lights-out. The extended exhale activates the parasympathetic branch and shortens time to sleep onset for most adults who practise it consistently.
Jump Rope Skill 15 min
Three 3-minute rounds of jump rope — basic bounce, alternating-foot, and high-knee — with 1-minute rests. Builds calf elasticity, foot coordination, and Zone 3 cardio in a footprint the size of a bathmat.
Goblet Squat + Farmer Carry 15 min
Three rounds of 10 goblet squats followed by 40 m farmer carry with the same kettlebell — 15 minutes of functional strength training grip, loaded carry, and squat pattern with one tool.
Chicken & Vegetable Stir-Fry with Buckwheat
A 25-minute dinner with 36 g of protein and 480 kcal — chicken thigh, broccoli, and snap peas stir-fried with ginger-soy over buckwheat, delivering sulforaphane and ~90 mg magnesium.
Turkey, Hummus & Veggie Wrap
A 10-minute no-cook lunch with 30 g of protein and 7 g of fiber at 420 kcal — whole-wheat tortilla, sliced turkey, hummus, baby spinach, cucumber, and roasted red pepper.
Quinoa & Chickpea Roasted Veggie Bowl
Roasted zucchini, red onion, and bell pepper over quinoa and chickpeas with tahini. Complete plant protein — 480 kcal, 20 g protein, 12 g fiber.
Progressive Muscle Relaxation 12 min
Tense each muscle group hard for 5 seconds, release for 10 — feet to face, 12 minutes. Counters the residual tension of a desk day.
Vagus Nerve Humming — 3 min
Three minutes of long, low-pitched humming on the exhale stimulates the vagus nerve via the larynx and ear. Vagal stimulation, parasympathetic activation, a focus reset.