You might be like many people over 50, who has found that as you age, arthritis in the hands , stiffness and general aging in the joints of the fingers has created certain weakness or discomfort when you try to use your hands for certain tasks.   I often have students ask me about the painful joints in their fingers and hands, could be the thumb joint, could be overall arthritic hands.    One task I often refer my students to is the Jam Jar Exercise .  How easy do you find it to open a jar?  Believe me, the manufacturers of jam jars have not made them any more difficult to open than 20 years ago!  But your hands might well have lost the strength they once had to open a jar.  Many yoga methods or approaches do not give specific attention to the hands or fingers, which is why in my joint renewal approach (which is designed specifically for folks over 50) I spend a lot of time teaching my students how to deal with strengthening and developing ...