Many believe cracking knuckles weakens grip. However, scientific studies show this habit does not reduce grip strength. Research also indicates no strong link to arthritis. A doctor even cracked one hand for 50 years with no ill effects. While usually harmless, seek medical advice if cracking causes pain or swelling. This common habit appears safe for most.from LifeStyle - Latest Lifestyle News, Hot Trends, Celebrity Styles & Events https://ift.tt/Wv0OFH6