From Career of Happiness by Rabbi Avigdor Miller
The Mishna (Avos 1:17) declares: “All my life I grew up among the Sages, and I found nothing better for the body than Silence.” We note that this is recommended as the best for the body, although it is unquestionably extremely beneficial for the Soul. Not only with in-laws or with others, but also even between husband and wife this practice is the cause of longer lives in this world.
Actually the problem is that there is too much communication
For example: when your husband arises in the morning and prepares to go to the Beth Haknesses, refrain from speaking; and if anything must be said, wait until after breakfast. Also, when he returns home from work, he is weary and worn out by customers or his employer or because of his competitors, and too discouraged to hear anything; if you wish to discuss anything, wait until after supper. The less you say, the happier you will be.
Many women complain of a lack of communication, but actually the problem is that there is too much communication. Certainly, some friendly expressions are always recommended and necessary, as when on coming home he inquires “How were things today?” And if his wife complains of too much work, let him listen sympathetically and justify her, briefly. Indeed, if some action is required to mend matters, it must be done. But on all accounts, do not disagree. “Yes! Yes!” is the best reply.
How much suffering and grief can be avoided by silence at the right moment! And how great will be the eternal reward for the one who refrained from retorting!