How many years do hot flushes last? How far into life can they occur (and how to ease them for good)?

First and foremost, it is important to know that there is no universal upper age limit. This is also what makes this transition so difficult to anticipate. For the majority of women, hot flushes appear during perimenopause, continue through menopause, and then gradually subside thereafter. But this "hormonal timeline" varies enormously from one woman to another.

Here are the most robust reference points that science currently has to offer. Hot flushes affect up to 85% of menopausal women and last on average between 7 and 10 years from their onset, although some women experience them over significantly longer periods, sometimes up to 14 years. The average age of menopause is around 51, which means that for many women, hot flushes begin as early as their forties, during perimenopause, and may still be present after the age of 60[1].

In practice, this means that it is entirely possible to experience hot flushes at 55, 60, or 65. This is not an exception, but a statistical reality for a significant proportion of women. The good news is that the intensity and frequency tend to decrease over time for most of them, even if their complete disappearance can take a few years.

Hot flushes are linked to disruptions in the thermoregulation system located in the hypothalamus, an area of the brain that regulates body temperature. When oestrogen levels drop and then gradually withdraw, this internal thermostat becomes dysregulated, triggering those sudden sensations of intense heat in the face, neck and chest, generally accompanied by sweating, flushing and sometimes palpitations. These episodes typically last between 1 and 5 minutes, but can recur several times a day.

Certain factors are associated with an increased risk of more frequent or more intense hot flushes, including excess body fat, smoking and alcohol consumption. Conversely, a Mediterranean-style diet, rich in fruits, vegetables, wholegrains and healthy fats, is associated with a reduction in these symptoms. A large cohort study of more than 6,000 women found that a diet high in fats and sugars significantly increased the risk of vasomotor symptoms, whereas a Mediterranean diet or one rich in fruit markedly reduced it[2].

While hot flushes are the best-known symptom of the menopausal transition, they are frequently accompanied by other manifestations linked to the same hormonal cause: night sweats, sleep disturbances, irritability, fatigue and joint pain. A study conducted among women in perimenopause found increased sweating in 84% of them, increased nervousness in 79%, and sleep disturbances in 67%[3].

This broader picture matters, because it is not uncommon for sleep quality and hot flushes to influence one another. Night sweats fragment sleep, and poor-quality sleep can in turn make hot flushes harder to manage day to day. Addressing one of these aspects often helps to ease the other.

Adjusting your diet and lifestyle habits

The most obvious and accessible levers remain dietary and behavioural. Limiting alcohol and tobacco, favouring a Mediterranean-style diet rich in vegetables, legumes, oily fish and nuts, and maintaining good hydration (the recommended intake is around 33 ml of water per kilogram of body weight per day) are fundamental principles that have demonstrated their value in the scientific literature for reducing the frequency of vasomotor symptoms[4].

Moving regularly, and in particular practising yoga

Regular physical activity contributes to alleviating menopause symptoms as a whole. Yoga in particular has shown interesting results: one study observed that its practice effectively reduced menopause symptoms, with the most marked effects in postmenopausal women, followed by women in perimenopause, while also significantly improving sleep quality[5].

Turning to herbal medicine, and sage in particular

Among the plants studied for hot flushes, sage (Salvia officinalis) has a particularly robust body of clinical evidence. Traditionally used in Europe to reduce menopause-related sweating, its extract has been tested in several randomised placebo-controlled clinical trials.

In one of these trials, conducted double-blind in 80 menopausal women taking 280 mg of sage extract per day, the hot flush severity score decreased by 55% in just 4 weeks, with a significant effect compared to placebo from the third week onwards[6]. Another study conducted in 71 women experiencing at least five hot flushes per day showed a reduction in the average number of daily hot flushes, from 9.3 to 3.8 after 8 weeks of intake, and a 64% decrease in the overall hot flush intensity score[7].

This efficacy is thought to be explained in part by modulation of serotonin receptors and transporters by sage extract, which may contribute to normalising thermoregulation. Beyond hot flushes, these studies also reported improvements in sleep, mood and joint pain, with tolerability rated as very good across all trials.

If you are looking for a food supplement designed specifically for this period of life, Péri Support Jolly Mama combines four plant-based active ingredients selected to address the main discomforts of perimenopause, starting with hot flushes and night sweats.

Its formula draws in particular on sage extract, whose efficacy has been demonstrated in the clinical trials mentioned above, combined with other active ingredients aimed at supporting feminine comfort, emotional balance, and general wellbeing during this hormonal transition.

Péri Support is intended for women experiencing one or more of the following signs: hot flushes, night sweats, cycle imbalance, irritability or mood disturbances, stress, and low energy. Like any food supplement, it supports an overall healthy lifestyle and does not replace medical advice, particularly in the case of a history of hormone-dependent conditions or ongoing treatment.

Hot flushes are among the normal manifestations of the menopausal transition, but certain signs may warrant speaking to a GP, gynaecologist or midwife: very frequent or intense episodes that significantly disrupt sleep or daily life, the onset of hot flushes after the age of 60 without an obvious menopausal context, or uncertainty about the origin of the symptom.

In France, the preventive health check offered between the ages of 45 and 50, covered at 100%, is a good opportunity to discuss these questions with a healthcare professional.

Hot flushes last an average of 7 to 10 years, but can persist much longer in some women, sometimes beyond the age of 60 or 70, and up to 75 or 80. There is no strict upper age limit. A balanced diet, regular physical activity, and natural solutions such as sage extract are among the best-documented approaches to reducing their frequency and intensity on a day-to-day basis.