Tethered headsets are physically connected to the laptop or computer. It is a much more complex system that gives an ultimate VR experience. The VR headset for iPhones works pretty well with iPhone, giving the user an awesome virtual reality experience.
DHA (docosahexaenoic acid) is an omega-3 fatty acid often recommended to women during pregnancy. Thought to protect against a number of pregnancy-related complications, DHA is also said to promote the health of the developing child.
Explain that ACIP now recommends a dose of Tdap (tetanus, diphtheria, acellular pertussis) in late second or third trimester for pregnant women not previously immunized. Point out that this recommendation is made to decrease cases of pertussis in early infancy.