FIGURE 3.

Peripheral levels of β‐endorphin are elevated in response to ABA. Radioimmunoassay was used to detect circulating levels of beta‐endorphin in peripheral blood collected from female (a) and male (b) after varying days of exposure to ABA. Data are presented as mean ± SD. *p = 0.0223. Data were analyzed using one‐way ANOVA. Additional details are found in the results section. n numbers were as follows: female: 24 hr ABA: n = 5, 48 hr ABA: n = 5, 72 hr ABA: n = 7, male: 24 hr ABA: n = 3, 48 h ABA: n = 3, 72 hr ABA: n = 4