{
  "slug": "cycle-tracking",
  "name": "Cycle tracking",
  "aliases": [
    "period tracking",
    "training by cycle",
    "whoop cycle",
    "ovulation app"
  ],
  "family": "numbers",
  "heat": "high",
  "talk": "Lots of talk",
  "mostDiscussed": false,
  "firstLine": "Cycle tracking records menstrual dates and, optionally, symptoms alongside daily life. Apps may also generate predictions from those entries.",
  "whyLine": "People use cycle dates and symptoms to make sleep, mood and training logs easier to interpret. A record can reveal a personal pattern, while predictions and phase labels can feel more certain than the information entered.",
  "feelWords": [
    "period tracking",
    "training by cycle",
    "whoop cycle",
    "ovulation app"
  ],
  "commonPicture": [
    {
      "lead": "Choose a small set of entries",
      "why": "Start dates, sleep, energy and mood are examples people record. [community]"
    },
    {
      "lead": "Dates and predictions are different",
      "why": "A recorded period date is an observation; an app's forecast depends on the entries and method it uses. [community]"
    },
    {
      "lead": "Training is one use of the diary",
      "why": "Some compare symptoms with hard and easy sessions without assuming every cycle phase calls for the same workout. [community]"
    }
  ],
  "watchFor": "An app records or estimates patterns; it does not replace assessment of possible pregnancy, missing periods or severe pain. Ordinary tracking is not a fertility treatment plan.",
  "whatPeopleSay": [
    "**The job:** see whether the hard week and the wrecked sleep repeat on a calendar. [community]",
    "**A pattern discussed on r/xxfitness:** setting a personal record, then feeling markedly worse during another part of the cycle. [community]",
    "**Apps guess; bodies differ.** People still find the log useful. [community]",
    "**Missing periods, severe pain, pregnancy questions:** clinician. [community]"
  ],
  "howPeopleRunIt": [
    "**Log the start date. Add symptoms if they want.** [community]",
    "**They do not skip a needed rest day because an app said ‘power phase.’** [community]"
  ],
  "amountsPeopleUse": [
    "**A few months of logs** before they treat a pattern as real. [community]"
  ],
  "howPeopleKeepIt": [
    "**Small version:** mark day one. [community]"
  ],
  "howItFeels": [
    "**The point is pattern, not a score.** [community]"
  ],
  "howLongPeopleRunIt": [
    "**As long as the calendar is useful.** [community]"
  ],
  "deepDive": [
    "**A log is different from a prediction:** Dates and symptoms are entries a person records; an app’s predicted period or phase is an interpretation of those entries. Logging sleep, energy or training alongside them may help someone recognize their own pattern, but the phase label does not establish how they must feel or train that day. [community]",
    "**What makes the record useful:** The accounts favor a few months of notes over judging one difficult session. Missing entries and changes in what someone logs affect the comparison. Missing periods, possible pregnancy or severe pain need medical attention rather than an app-generated explanation; a diary is not a fertility or training prescription. [community]"
  ],
  "watchForLong": [
    "**An app is not an exam.** [community]",
    "**Disordered tracking that shrinks food around a phase is a clinician.** [community]"
  ],
  "related": [
    "whoop",
    "oura",
    "lift-after-40",
    "sleep-hours",
    "hrv"
  ],
  "researchPointer": [],
  "playPointer": null,
  "forums": [
    "r/xxfitness",
    "r/TwoXChromosomes"
  ],
  "sources": [
    "2026 watch/app cycle-logging release talk",
    "r/xxfitness training-by-cycle threads",
    "2026 cycle-logging app talk",
    "r/xxfitness training-by-cycle"
  ],
  "disclaimer": "Community talk may be wrong. Not medical or health advice. No result or safety is promised.",
  "quickAnswerHistory": [
    {
      "field": "communityPicture",
      "rows": [
        "Watch apps made the feature loud in 2026. Training forums use a few months of logs as context, not as a command from an ovulation graphic."
      ]
    },
    {
      "field": "definition",
      "rows": [
        "Cycle tracking is logging menstrual cycle start dates and related symptoms beside training or sleep data."
      ]
    },
    {
      "field": "deepDive",
      "rows": [
        "**A diary next to the watch:** 2026 recovery apps added cycle logging next to HRV. Training forums use it as context, not a command. Keep clinician territory off this card. [community]"
      ]
    },
    {
      "field": "firstLine",
      "rows": [
        "Cycle tracking is logging period and symptoms next to training and sleep — 2026 watch apps shipped it as a feature, not a diagnosis."
      ]
    },
    {
      "field": "commonPicture",
      "rows": [
        {
          "lead": "A start date and symptoms",
          "why": "Period, energy, sleep, mood — whatever they actually log. [community]"
        },
        {
          "lead": "Watch apps shipped it in 2026",
          "why": "Athlytic-style cycle insights made the feature loud. [community]"
        },
        {
          "lead": "Training-by-cycle talk",
          "why": "Hard sessions vs easy weeks in r/xxfitness. [community]"
        },
        {
          "lead": "Not a fertility clinic",
          "why": "This is a diary. [community]"
        }
      ]
    },
    {
      "field": "whyLine",
      "rows": [
        "People want a log of cycle days next to training and sleep, not a diagnosis from an app."
      ]
    },
    {
      "field": "whatPeopleSay",
      "rows": [
        "**r/xxfitness** is ‘I PR’d then crashed on the same cycle week.’ [community]"
      ]
    },
    {
      "field": "watchFor",
      "rows": [
        "An app is not an OB/GYN. Pregnancy, missing periods, or severe pain is a clinician. Not a fertility-clinic protocol."
      ]
    }
  ]
}