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.
On average, pregnant and nursing women in the U.S. consume 60-80 mg of DHA a day, from food and drink, which is only 20-25% of the recommended intake.* That's why DHA is one of the most important supplements for pregnancy.