“…The indirect effects that social support can have on the strength of the relationship between stressors and caregiver‐stress outcomes are only partially documented (Miller et al ., ). Similar findings were observed in Japan (Matsuoka, ; Sugihara et al ., ; Kawamoto et al ., ; Mitadera, ; Kunugimoto et al ., ; Sugiura et al ., ). For instance, the availability of a secondary caregiver (Sugihara et al ., ), such as one who either helps with daily care or in the case of an emergency (Matsuoka, ; Matsuda, ), are found to be effective.…”