{
  "slug": "easy-miles",
  "name": "Zone 2 / easy cardio",
  "aliases": [
    "easy miles",
    "easy running",
    "Zone 2 training",
    "low intensity cardio",
    "zone-2",
    "zone 2 cardio",
    "easy cardio",
    "conversational pace",
    "mitochondrial cardio"
  ],
  "family": "run",
  "heat": "high",
  "talk": "Lots of talk",
  "mostDiscussed": true,
  "firstLine": "Zone 2 is relatively easy aerobic exercise that can be sustained while carrying on a conversation. People use it to build an endurance base without making every workout exhausting. Training systems draw its boundaries differently, so there is no single heart-rate range that fits everyone.",
  "whyLine": "Zone 2 is relatively easy aerobic exercise that can be sustained while carrying on a conversation. People use it to build an endurance base without making every workout exhausting. Training systems draw its boundaries differently, so there is no single heart-rate range that fits everyone.",
  "feelWords": [
    "zone 2",
    "easy miles",
    "conversational",
    "too slow",
    "80/20"
  ],
  "commonPicture": [
    {
      "lead": "Session reports: 20–60 minutes, often 2–4 times weekly",
      "why": "Some longer training weeks contain 2–4 total hours of easy work. [community]"
    },
    {
      "lead": "About 80% easy is a discussion shorthand",
      "why": "It is not a fixed rule for every week or a universal limit of one hard day. [community]"
    },
    {
      "lead": "Other easy cardio can sit alongside running",
      "why": "Walking and cycling appear in wider plans, though they are not literal running miles. [community]"
    }
  ],
  "watchFor": "If you cannot talk, it is not easy. A gadget is optional. Calling a hard 5K a base-builder.",
  "whatPeopleSay": [
    "**The job:** Build a base they can repeat. [community]",
    "**2026 r/running:** “do I even need Zone 2?” is a weekly thread. The answer in the comments is usually “you need easy volume, the brand name is optional.” [community]",
    "**Strength Running (Nov 2024 and after):** Zone 2 needs volume; a tiny easy jog is not a program. [community]",
    "**Seiler’s polarized model** (lots easy, a little hard) is the coach version of the same week. [community]",
    "**Attia / San Millán** made Zone 2 a personality. 2026 threads ask if it is oversold. Hybrid people keep both easy and one hard day. [community]",
    "**The Maffetone formula (180 − age)** is discussed as a heart-rate (HR) cap. [community]",
    "**Recreational runners** race their easy days because easy feels embarrassing. [community]",
    "**You don’t need a $400 strap to start.** The sentence test is the tool. [community]",
    "**Watch algorithms lie** on heat, caffeine, and bad sleep. [community]",
    "**A running report needs the session details:** pace, heart rate and described effort can tell different stories about the same run. [community]",
    "**12–3–30 and rucking** often land in this band if they can still talk. [community]"
  ],
  "howPeopleRunIt": [
    "**Slow down until they can talk.** [community]",
    "**Separate easy effort from hard sessions:** the number of hard days depends on the wider plan. One hard day is a familiar example, not the definition of easy miles. [community]",
    "**Hills:** they walk or shuffle instead of racing. [community]",
    "**Podcast pace** is a synonym. If they cannot follow the sentence, they slow down. [community]",
    "**Indoor bike + a show** is how rainy people keep minutes. [community]",
    "**They do not check Strava average pace** as a score on easy days. [community]",
    "**New runners:** walk/run is still easy miles. See Couch to 5K. [community]"
  ],
  "amountsPeopleUse": [
    "**Share people quote:** about **80%** easy. [community]",
    "**Time:** **20–60 min** a session; Attia-shaped talk is **2–4 hours/week** easy. [community]",
    "**Days:** **2–4** easy sessions. [community]",
    "**Heart-rate shorthand:** roughly **60–70% of maximum heart rate (HRmax)**, or **180 − age**, appears in the talk. These are different ways of estimating effort, not interchangeable personal measurements. [community]",
    "**Lactate nerd target:** ~**1.5–2.0 mmol** — lab people only. [community]"
  ],
  "howPeopleKeepIt": [
    "**A loop they know is slow.** Same route, no racing the segment. [community]",
    "**A buddy who will actually talk.** [community]",
    "**Bike if the jog always turns into a tempo.** [community]",
    "**They hide the pace on the watch** if they cannot resist. [community]",
    "**Easy is the default.** Hard needs a reason. [community]"
  ],
  "howItFeels": [
    "**Embarrassingly slow.** Then the long run stops wrecking Tuesday. [community]",
    "**Ego death in public.** Someone they used to pass is still chatting. [community]",
    "**After a month:** they finish fresher. That is the hook. [community]",
    "**If they keep racing easy days:** they are tired and “not built for running.” [community]",
    "**Heat / bad sleep:** the same pace is no longer easy. They slow more. [community]",
    "**The good version:** slightly bored, slightly proud they did not race. [community]"
  ],
  "howLongPeopleRunIt": [
    "**Most weeks they run.** This is the default, not a phase. [community]",
    "**Base-building blocks** are almost all this. [community]",
    "**Race season** still keeps most miles easy. [community]",
    "**A week of only hard sessions** is how people get injured and take a month off. [community]"
  ],
  "deepDive": [
    "**Zone 2 the brand vs easy the job.** The job is what matters. [community]",
    "**Couch-to-5K** is the named walk/run on-ramp. [community]",
    "**Long run** is just a longer easy day for most people. [community]",
    "**Hard cardio / VO2** describes demanding sessions elsewhere in some plans; it does not establish a universal one-day allowance. [community]",
    "**Steps do not establish an intensity zone:** neither a step count nor calling a session purposeful shows where it falls in a particular zone system. [community]"
  ],
  "watchForLong": [
    "**If you cannot talk, you left easy.** [community]",
    "**You do not need a $400 strap to start.** [community]",
    "**A hard 5K is not a base-builder.** [community]",
    "**Zone 2 as a gadget religion is optional.** [community]",
    "**Chest pain, fainting, or wheezing that is not just “unfit”:** a person and a clinician. [community]"
  ],
  "related": [
    "couch-to-5k",
    "long-run",
    "hard-cardio-day",
    "vo2-intervals",
    "twelve-three-thirty"
  ],
  "researchPointer": [],
  "housePointers": [
    {
      "href": "/self/#ten-k-steps",
      "label": "STUDself · 10k steps"
    },
    {
      "href": "/self/#vo2-number",
      "label": "STUDself · VO2 as a number"
    },
    {
      "href": "/self/#walking-pad",
      "label": "STUDself · Walking pad"
    }
  ],
  "playPointer": null,
  "sources": [
    "r/running 2026 Zone 2 threads",
    "Strength Running Zone 2",
    "Seiler polarized talk"
  ],
  "disclaimer": "Community talk may be wrong. Not medical, training, or diet advice. Sharp pain, fainting, or disordered-eating concerns need a clinician.",
  "quickAnswerHistory": [
    {
      "field": "commonPicture",
      "rows": [
        {
          "lead": "Most of the week easy",
          "why": "80/20 / polarized talk. Recreational runners often only do 50–60% easy. [community]"
        },
        {
          "lead": "20–60 minutes",
          "why": "A session, not a personality. [community]"
        }
      ]
    },
    {
      "field": "howPeopleRunIt",
      "rows": [
        "**Save the hard day** for one session, not five. [community]"
      ]
    },
    {
      "field": "deepDive",
      "rows": [
        "**Hard cardio / VO2** is the one expensive day. [community]",
        "**Steps are not automatically Zone 2.** A purposeful easy session is. [community]"
      ]
    },
    {
      "field": "firstLine",
      "rows": [
        "Most of the running week is supposed to be slow enough to talk. That is the part people skip."
      ]
    },
    {
      "field": "whyLine",
      "rows": [
        "Easy miles are how people stack volume without turning every jog into a race."
      ]
    },
    {
      "field": "commonPicture",
      "rows": [
        {
          "lead": "Talk test: full sentences",
          "why": "The free definition on r/running. [community]"
        },
        {
          "lead": "Easy share slogan: about 80% of the week",
          "why": "The notes retain this as a discussion shorthand. [community]"
        },
        {
          "lead": "Walk, easy jog, bike",
          "why": "Whatever they will repeat. Bike is easier to stay easy on. [community]"
        },
        {
          "lead": "Sessions: 20–60 minutes, often 2–4 times a week",
          "why": "Some longer-week accounts describe 2–4 total hours of easy work. [community]"
        },
        {
          "lead": "One hard day at most",
          "why": "The sibling card. Not five. [community]"
        }
      ]
    },
    {
      "field": "whatPeopleSay",
      "rows": [
        "**Maffetone (180 − age)** still has fans as an HR cap. [community]",
        "**Self already has a Zone 2 habit card.** This card is the running session. [community]"
      ]
    },
    {
      "field": "amountsPeopleUse",
      "rows": [
        "**HR talk:** roughly **60–70% HRmax**, or Maffetone 180 − age. Individual. [community]"
      ]
    }
  ]
}