For 50 years we've known pulse oximeters are less accurate on darker skin, and it could lead to misdiagnoses. 

Also, allergen starter packs are being advertised to parents. Are they safe?

Guidelines have been released for male infertility care so men aren't left out. 

And joint replacements don't last forever, but there are ways to extend their life.

References

• Guidelines for the management of male infertility - Healthy Male
• Data Resource Profile: The Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR)
• Novel Hypoglossal Stimulation Markedly Improves Airflow and Airway Collapsibility in OSA
• Racial Bias in Pulse Oximetry Measurement - NEJM
• Find a clinical trial