GENETIC STUDIES have generally focused on clinical or pathological phenotypes, such as obesity and diabetes. Now accumulating evidence indicates that our behaviors also have a strong genetic basis! The data presented by Lightfoot et al. in this issue of the Journal of Applied Physiology (6a) strengthen the belief that physical activity (PA) as a behavior has a genetic basis. The first report of...

The technique of pulsed field recombination is used to recombine a free electron with carbon cation clusters, ranging from C to C. It is shown that after recombination the electron is left in a highly excited state. The recombination method 60 50 Ž . produces a Rydberg state n;180 in a large carbon cluster, such as C , with an electronic energy spread of ;1 K. We 60 measured a recombination eff...