Here's a look at some of the top health news being talked about around the U.S. and the world today:

• Congressional leaders and White House officials reached a tentative agreement on a proposed tax on premium, employer-sponsored health insurance plans.

• A woman received a successful windpipe transplant after nurturing the organ in her arm for 10 months.

• A study looking to quantify the harmful impact of inactivity says watching TV shortens human lifespans.

• World Health Organization officials rejected claims on Thursday the threat posed by the swine flu virus had been exaggerated by the agency.

Tina Reed covers health and the environment for AnnArbor.com. You can reach her at tinareed@annarbor.com, call her at 734-623-2535 or find her on Twitter @TreedinAA.