Cigarette smoking may be associated with lower semen volume. The length of time in between ejaculations may be associated with greater semen volume. However, these are relatively small differences. Some men notice changes to their semen volume based on sleep and even exercise,
Because a man’s pelvic muscles are linked to the power of his ejaculation, and his orgasms, it may be that pelvic floor muscle exercises, such as Kegel exercises, can help to improve the thrust of a man’s ejaculate – to help him squirt more than drip.