False. If the seat is excessively reclined the headrest will be far from the person sitting which will not provide protection. To put the sit in a recline position is to put it in rest or in a sloping angle. This does not give a person the protection he/she needs when a vehicle or any mode of transportation is moving forward. This is one of the many reasons why when planes take off they advise their passengers to fasten their seat belts and adjust their seats to an erect position to fully support the body.
Symptoms may include: headaches, decreased cognitive function (as in trouble focusing), increased heart rate, hyperventilation, shaking/tremors, sweating, etc.
