There is also other ways:
Trade happiness resources for health resources (or other way around) or play Ottoman (Hamman gives +2 to both) or Charismatic/Expansive leader or build wonders (The Handing gardens, The Notre dame,...) or the best way, control your city growth and actual working tiles/improvements.
If you have more happiness resources (and no one want trade with you), you can let city grown to unhealthiness, as you can run more specialists. I tend to do it, when in caste system (so can´t whip) and when city has good land for farms. Then I have 3-6 unhealthy population, which means also 3-6 specialists. After it reaches the break point and city starting to starve I´me letting the city to fall back 3-6 population down, but until it happen I´m enjoying 3-6 specialists for 30 - 60 turns. It happens often, that city don´t even loose 1-2 population it starting to grow again or I trade for health resource. Sometimes I´m doing this by purpose - trading health resources for happiness resources to have surplus of happiness to run maximum specialist with representation.
Trade happiness resources for health resources (or other way around) or play Ottoman (Hamman gives +2 to both) or Charismatic/Expansive leader or build wonders (The Handing gardens, The Notre dame,...) or the best way, control your city growth and actual working tiles/improvements.
If you have more happiness resources (and no one want trade with you), you can let city grown to unhealthiness, as you can run more specialists. I tend to do it, when in caste system (so can´t whip) and when city has good land for farms. Then I have 3-6 unhealthy population, which means also 3-6 specialists. After it reaches the break point and city starting to starve I´me letting the city to fall back 3-6 population down, but until it happen I´m enjoying 3-6 specialists for 30 - 60 turns. It happens often, that city don´t even loose 1-2 population it starting to grow again or I trade for health resource. Sometimes I´m doing this by purpose - trading health resources for happiness resources to have surplus of happiness to run maximum specialist with representation.