Akeman Street Kirtlington also uses its course. Other parts are in use as public footpaths, including a stretch between Tackley and Stonesfield that is part of the Oxfordshire Way. The origins of the road's name are uncertain but certainly date back to the Early Middle Ages. Some have suggested that "Akeman" derives from the Anglo-Saxon words for "oak-man". Others have suggested a connection with Bath, which the Anglo-Saxons called "Acemannesceastre" ("Acemannes" apparently being derived from the Roman name Aquae Sulis). It is unclear how this might have become associated with the road, but one possibility is that the name was originally used
Aphanizomenon flos-aquae samples exceeded the safety value of 1 µg microcystin per gram. University professor Daniel Dietrich warned parents not to let children consume "A. flos-aquae" products, since children are even more vulnerable to toxic effects, due to lower body weight, and the continuous intake might lead to accumulation of toxins. Dietrich also warned against quackery schemes selling these cyanobacteria as medicine against illnesses such as attention deficit hyperactivity disorder, causing people to omit their regular drugs. A Canadian study studying the effect of "A. flos-aquae" on the immune and endocrine systems, as well as on general blood physiology, found that eating