Astronauts that have returned after spaceflights over three months may show signs of incomplete bone recovery even after one year on Earth, but adding in more resistance-based exercises during spaceflight may help limit bone loss. The small study, published in Scientific Reports, on 17 international astronauts found that while the shinbone partially recovers, the sustained bone losses after one year are equivalent to ten years of normal age-related bone loss on Earth.

Changes in the way that humans live and eat have resulted in tremendous alterations in the gut microbiome, especially over the past few decades. These changes have been linked to increased rates of asthma, allergies, diseases of the digestive system, type 2 diabetes, and other conditions. In an opinion article published June 30 in the journal Trends in Molecular Medicine, a team from Harvard Medical School and Brigham and Women’s Hospital (BWH) proposes that we can combat these trends by having individuals bank samples of their own gut microbiota when they are young and healthy for potential use later in life in an autologous fecal microbiota transplant (FMT).

About The Study: This study of 6,300 women attempting to conceive without the use of fertility treatment examined the association between living in disadvantaged neighborhoods and fertility.

A small tweak to hospitals’ prescribing systems might make a big difference in reducing risk from leftover opioid pain medication, while still making sure surgery patients get relief from their post-operation pain, a new study suggests.

About The Study: The findings of this qualitative study provide consensus-level guidance to clinicians caring for patients with advanced cancer, pain and opioid misuse/use disorder.