being able to stand without falling to either side balance being able to do things that take a lot of physical effort strength being able to bend easily flexibility being able to think carefully about what you are doing concentration being physically healthy fitness feeling worried or nervous anxiety a difficult situation that makes you feel worried pressure being able to continue with physical effort for a long time stamina https://339efcb25eb75e967b0d-ff8eeadd950d51fd1fc939dca75b3973.ssl.cf1.rackcdn.com/assets_default.swf