context1: Due to factors such as widely varying definitions and possible underreporting of concussion, the rate at which it occurs annually is not known; however it may be more than 6 per 1,000 people. Common causes include sports injuries, <strong>bicycle</strong> accidents, <strong>car</strong> accidents, and falls; the latter two are the most frequent causes among adults. Concussion may be caused by a blow to the head, or by acceleration forces without a direct impact.
context2: The park is in total of which 90 is woodland previously owned by the Forestry Commission and now by the Lincolnshire Wildlife Trust. Lincolnshire County Council own the nature reserve and both work together to maintain the park with the help from two full time wardens and many volunteers. <strong>Car</strong> parking now costs 75 pence and access is only on foot or wheelchair, <strong>bicycles</strong> and horses being disallowed.