KSQD 4-06-2022: Strategies for vaccine development to deal with successive variants of SARS-CoV-2 virus. A study links vaping with diabetes. All about the BRCA gene mutations and new techniques to diagnose breast cancer. The importance of the variations of vitamin K. Should I worry if I can hear my heartbeat when lying on the side to sleep? Sources of Vitamin K in cheese and meat -- more benefits are detailed. Large study shows the benefit of the HPV vaccine to prevent cervical cancer. What is the difference between Vitamin MK7 vs K2 and K4? Bone fragility from chronic use of bisphosphonates differs in different ethnic groups. The changing blood pressure goal values for managing hypertension.