else

    patient->hit_points += health_boost;
    bool success = true;
    if (patient->hit_points > patient->max_hit_points)

        patient->hit_points += health_boost;
        if (patient->hit_points > patient->max_hit_points)

        if (permit_growth)

            if (permit_growth)
                patient->max_hit_points++;

            const monsterentry* m = get_monster_data(patient->type);
            const unsigned maxhp =
                m->hpdice[0] * (m->hpdice[1] + m->hpdice[2]) + m->hpdice[3];

            patient->hit_points = patient->max_hit_points;

            // Limit HP growth.
            if (random2(3 * maxhp) > 2 * patient->max_hit_points)
                patient->max_hit_points++;
            else
                success = false;

        patient->hit_points = patient->max_hit_points;

    return (true);

    return (success);