Several health and technology studies have been published this week covering topics ranging from bone density treatments to smartphone usage patterns.

A study on bone density loss found that more than 40 million adults in the U.S. aged 50 and older have osteopenia, or low bone density. Researchers examined an FDA-approved wearable vibration device that may help slow bone density loss in some women.

Separate research examined the relationship between modern smartphones and fertility rates. Two studies investigated whether the introduction of smartphones in 2007 coincided with declining birthrates that began the same year, suggesting a potential correlation between the technologies and demographic changes.

In pharmaceutical news, Zealand Pharma's stock declined 24% following the release of weight-loss drug trial data that raised safety concerns among investors. Meanwhile, physicians continue to prescribe experimental weight-loss medications that have gained attention on social media platforms, despite lacking full FDA approval.

Nutrition researchers also published findings on heart-healthy foods, specifically examining flavanol content in fruits and vegetables. The study identified which produce items provide the highest levels of these nutrients, noting that not all fruits and vegetables offer equal nutritional benefits for cardiovascular health.

Coca-Cola announced the launch of BodyArmor Fit as part of its expansion into health-focused beverage categories.