Maintaining a stable weight in later life has long been associated with good health and overall well-being. Now, a new study published in the Journal of Gerontology sheds light on the connection between weight stability and exceptional longevity in older women.

The study, led by researchers from the University of California San Diego, analysed data from the Women’s Health Initiative (WHI), a long-term national study aimed at identifying ways to prevent major causes of death and disability among older women. The study involved 54,437 women over the age of 60, and the results were nothing short of fascinating.

The researchers found that women who maintained a stable weight, with less than a 5% variation from their baseline weight, were more likely to experience exceptional longevity. In this study, exceptional longevity was defined as living to the age of 90 or older. Of the women involved, 56% lived to at least age 90.

Interestingly, the study also found that intentional weight loss was not associated with exceptional longevity. In fact, older women who lost 5% or more of their weight, especially if it was unintentional, were less likely to reach the age of 90. On the other hand, gaining weight did not seem to have an impact on exceptional longevity.

So what factors might be at play here? According to experts, several mechanisms could explain these findings. Firstly, maintaining a stable weight may indicate a well-balanced and consistent dietary pattern. Individuals who keep their weight stable are more likely to follow a diet that provides essential nutrients and avoids extremes in caloric intake. This nutritional stability can have a positive effect on metabolic health, reducing the risk of chronic diseases that can contribute to longevity.

Secondly, a stable weight can also be an indicator of an active lifestyle. Regular exercise not only helps with weight management but also enhances cardiovascular health, maintains muscle mass, and supports overall bodily functions. Engaging in physical activity can counteract age-related muscle loss and metabolic decline, promoting a longer and healthier life.

Based on these findings, experts recommend several strategies for older women who want to maintain a stable weight and increase their chances of living a longer and healthier life. These strategies include:

1. Eating a balanced diet: Focus on whole foods, including a variety of fruits, vegetables, lean proteins, whole grains, and healthy fats. Avoid processed foods, sugary snacks, and high-calorie beverages.

2. Getting regular physical activity: Incorporate cardiovascular exercises like walking, swimming, and cycling, as well as strength training, into your routine. Exercise helps maintain muscle mass, metabolism, and overall health.

3. Practising portion control: Be mindful of portion sizes to avoid overeating. Pay attention to hunger and fullness cues and avoid eating out of boredom or stress.

4. Managing stress: Chronic stress can contribute to weight gain or loss due to hormonal changes. Engage in relaxation techniques like meditation, deep breathing, or yoga to manage stress effectively.

5. Staying hydrated: Drink plenty of water throughout the day. Sometimes, thirst can be mistaken for hunger, leading to unnecessary snacking.

6. Getting regular check-ups: Regular medical check-ups can help identify any underlying health issues that might affect weight stability. Addressing these issues promptly can support overall health.

7. Getting good sleep: Make it a priority to get a sufficient quantity of restful sleep. Poor sleep can disrupt hormones related to appetite and metabolism.

8. Seeking out social support: Surround yourself with a supportive social network. Engaging in healthy behaviours with friends or family can make it easier to maintain a stable weight.

While it’s important to note that human longevity appears to have an upper limit, with the oldest recorded age being 122 years, this study highlights the potential impact of weight stability on reaching a ripe, old age. Genes, environment, resiliency, and luck all play a role, but maintaining a stable weight in later life may be an additional factor to consider.

The findings of this study provide valuable insights into the importance of weight stability for older women’s longevity. By following a balanced diet, engaging in regular physical activity, managing stress, and prioritising good sleep, older women can increase their chances of maintaining a stable weight and enjoying a longer and healthier life.