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Femtech start-up 28 launches “cycle-based” wellness app
The company aims to demystify and destigmatise menstrual health while enabling women to embrace their femininity
Femtech start-up 28 has launched a “cycle-based” health and wellness app to accompany its online platform.
The launch of the app, 28 says, will give more women access to personalised fitness and nutrition insights and help them embrace their femininity and unique biology.
28 is a personalised, cycle-based fitness and holistic wellness platform for women that provides free daily streaming exercises, nutrition profiles, body predictions and emotional insights to help users work with their bodies’ physical and hormonal fluctuations.
The wellness experience aims to personalise women’s daily experience and keep them in control of their cycle data, as different external factors were shown to cause hormone imbalances for millions of women.
The company says the idea behind the platform came in response to an industry dominated by fitness methods designed for men, with no regard for the menstrual cycle.
“You deserve more than a period tracker,” says founder of 28, Brittany Hugoboom, who have recently established the company’s headquarters in Miami.
“Your cycle has four phases, and each phase brings changes to the brain and body. Exercising and eating based on your cycle means changing the types of movements and nutrients during each phase to optimise your physique, hormones, and mood.
“The 28 app empowers you to do that and more.”

In the light of Roe v Wade, Hugoboom insists that the platform has strong privacy policies that highlight 28’s commitment to never sell user cycle data for any reason and to never turn over data to any government or regulatory authority under any circumstance.
“We’ve intentionally built an algorithm that can be manually controlled by the user at any time, as opposed to leveraging more invasive, machine learning methods.
“It is strictly confidential and used only for the purposes of providing a customised user experience.”
The start-up says it is continuing to update its app with additional features, including meal plans, shopping lists and more personalised insights
Insight
Topical HRT protects bone density in women with period loss – study
Transdermal HRT best protects bone density in women with functional hypothalamic amenorrhoea, a condition that stops periods, a review of trials has found.
The meta-analysis pooled randomised clinical trials involving 692 participants and found transdermal hormone replacement therapy and teriparatide increased bone mineral density by between 2 and 13 per cent.
Functional hypothalamic amenorrhoea can follow anorexia or intense exercise. Bone mineral density measures bone strength and the amount of mineral in bone.
Around half of women with the condition have low bone mineral density, compared with about 1 per cent of healthy women, and their fracture risk is up to seven times higher.
The research was conducted by scientists at Imperial College London and Imperial College Healthcare NHS Trust.
Professor Alexander Comninos, senior author of the study and consultant endocrinologist at the trust, said: “Bone density is lost very rapidly in FHA and so addressing bone health early is very important to reduce the lifelong risk of fractures.
“Our study provides much needed comparisons of all the available treatments from all available studies.
“Clearly the best treatment is to restore normal menstrual cycles and therefore oestrogen levels through various psychological, nutritional or exercise interventions – but that is not always possible.
“The foundation for bone health is good calcium and vitamin D intake (through diet and/or supplements) but we have additional treatments that are more effective.”
When FHA is diagnosed, clinicians first try to restore periods through lifestyle measures, including psychological and dietary support, but these can fail. Guidelines then recommend giving oestrogen, though the best form was unclear.
The team reviewed all prior randomised trials comparing therapies, including oral and transdermal oestrogen, and also assessed teriparatide, a prescription bone-building drug used for severe osteoporosis.
They found no significant benefit for oral contraceptive pills or oral hormone therapy.
A recent UK audit reported that about a quarter of women with anorexia-related FHA are prescribed the oral contraceptive pill for bone loss; the study suggests using transdermal therapy instead.
Comninos said: “Our goal is simple: to help women receive the right treatment sooner and to protect their bone health in the long-term.
“We hope this study provides clinicians with better evidence to choose transdermal oestrogen when prescribing oestrogen and so inform future practice guidelines.
“Right now, millions of women with FHA may not be receiving the best treatments for their bone health.”
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