Instinct may tell you to slow down when running in wintery conditions, but the secret to not slipping is actually to speed up and shorten your stride. Aim to have each foot strike the ground 90 times per minute, says Terry Chiplin, owner of Active at Altitude, a Colorado-based facility for endurance athletes. This high cadence helps ensure that each foot lands beneath the center of your weight rather than ahead of it, which can throw off your balance on slick terrain. 
Evaluations of protein-energy supplementation were limited to specific situations and contexts, and few studies evaluated national-scale programs (14, 33). National-level protein-energy supplementation programs for women and adolescent girls are expensive and challenging to implement compared with other efficacious interventions (33). Procuring, preparing, and distributing food and appropriately targeting women most in need (e.g., women below the poverty line, women who have or are at high risk of malnutrition, etc.) present challenges to protein-energy supplementation interventions (33).
The prevalence of Alzheimer's Disease in the United States is estimated at 5.1 million, and of these two thirds are women. Furthermore, women are far more likely to be the primary caregivers of adult family members with depression, so that they bear both the risks and burdens of this disease. The lifetime risk for a woman of developing Alzeimer's is twice that of men. Part of this difference may be due to life expectancy, but changing hormonal status over their lifetime may also play a par as may differences in gene expression.[119] Deaths due to dementia are higher in women than men (4.5% of deaths vs. 2.0%).[6]
These challenges are included in the goals of the Office of Research on Women's Health, in the United States, as is the goal of facilitating women's access to careers in biomedicine. The ORWH believes that one of the best ways to advance research in women's health is to increase the proportion of women involved in healthcare and health research, as well as assuming leadership in government, centres of higher learning, and in the private sector.[155] This goal acknowledges the glass ceiling that women face in careers in science and in obtaining resources from grant funding to salaries and laboratory space.[178] The National Science Foundation in the United States states that women only gain half of the doctorates awarded in science and engineering, fill only 21% of full-time professor positions in science and 5% of those in engineering, while earning only 82% of the remuneration their male colleagues make. These figures are even lower in Europe.[178]
After menopause. Lower levels of estrogen  after menopause raise your risk for chronic diseases such as heart disease, stroke, and diabetes, and osteoporosis, a condition that causes your bones to become weak and break easily. What you eat also affects these chronic diseases. Talk to your doctor about healthy eating plans and whether you need more calcium and vitamin D to protect your bones. Read more about how very low estrogen levels affect your health in our Menopause section. Most women also need fewer calories as they age, because of less muscle and less physical activity. Find out how many calories you need based on your level of activity.
Ovulation problems are often caused by polycystic ovarian syndrome (PCOS). PCOS is a hormone imbalance problem which can interfere with normal ovulation. PCOS is the most common cause of female infertility. Primary ovarian insufficiency (POI) is another cause of ovulation problems. POI occurs when a woman's ovaries stop working normally before she is 40. POI is not the same as early menopause.
As women, many of us are prone to neglecting our own dietary needs. You may feel you’re too busy to eat right, used to putting the needs of your family first, or trying to adhere to an extreme diet that leaves you short on vital nutrients and feeling cranky, hungry, and low on energy. Women’s specific needs are often neglected by dietary research, too. Studies tend to rely on male subjects whose hormone levels are more stable and predictable, thus sometimes making the results irrelevant or even misleading to women’s needs. All this can add up to serious shortfalls in your daily nutrition.
Social protection programs typically target the most marginalized members of communities and typically families with children (5, 196). Cash transfers are often targeted to women in these households because they more often invest the transfers in household and food expenditures than men do (192, 202, 204, 205). Cash transfer programs were also targeted to older adults through government-coordinated programs (196, 198, 206). The delivery of transfers involved community centers (town halls, post offices) and banks, as well as locations associated with other services, e.g., schools or health centers (192, 206, 207). These latter platforms were relevant not only for the distribution of social protection programs (i.e., the receipt of transfers), but also for enrollment in and “conditions” of those programs. Conditional transfers required that recipients had access to certain delivery platforms (e.g., schools and health centers) in order to meet the “conditions” of their transfer, and this was a limitation in very rural areas. Although social protection programs are intended for the most vulnerable populations, their delivery platforms can serve as barriers to individuals’ receipt of services, particularly if they require engagement with health care, school, or work-related systems.

What you eat is even more important as you enter your 40s. Women need protein (meat, fish, dairy, beans, and nuts), carbohydrates (whole grains), fats (healthy oils), vitamins, minerals, and water. These foods have been linked to some disease prevention, such as osteoporosis, high blood pressure, heart disease, diabetes, and certain cancers. The American Academy of Family Physicians supports the development of healthy food supply chains in supplemental nutrition programs so as to broaden the availability of healthy food.