The Power of Words and Their Impact on the Human Brain
In the book Words Can Change Your Brain, Drs. Andrew Newberg and Mark Robert Waldman explore how negative language affects the brain. Using fMRI technology, they observed the brain activity of participants exposed to negative words such as “NO!” The research revealed that these words trigger the release of stress-related hormones and neurotransmitters from the amygdala, disrupting normal brain functions essential for logical thinking and effective communication.
Even a single negative word, when focused on for an extended period, can damage key brain structures responsible for memory and emotional regulation. When individuals verbalize negativity, it increases the release of stress chemicals not only in the speaker but also in the listener. This demonstrates that speech has the power to physically alter brain structures, influencing how we perceive ourselves and interact with the world.
The Spiritual Significance of Speech
Rabbi Tzadok HaKohen of Lublin highlights that during the three weeks leading up to Tisha B’Av, three specific haftarot are read. Each begins with related but distinct words: “Divrei,” “Shim’u,” and “Chazon.” These correspond to the concepts of Dibbur (speech), Shemiyah (hearing), and Re-iya (seeing). The message of this period is to reflect on the importance of speech and strive to use it more effectively in daily life.
In Jewish tradition, speech is considered a defining characteristic of humanity. The Talmudic commentary on Genesis notes that when God breathed into man, He created a “nefesh chaya” (living soul). Onkelos translates this as “Ruach Memamela,” or a speaking spirit. According to this view, speech sets humans apart from other creatures. The Maharal further explains that speech serves as a bridge between the body and soul, which is why the voice originates in the neck, at the junction of the head (symbolizing the soul) and the rest of the body.
Speech and Its Role in Jewish Tradition
The significance of speech is deeply embedded in Jewish teachings, particularly in the narrative of Parshat Pinchas and its surrounding portions. In Parshat Balak, we read about Bilam’s attempt to curse the Jewish people using words. Although his efforts failed, the Torah later states in Parshat Mattot that Bilam was responsible for inciting the licentious behavior described at the end of Parshat Balak, which ultimately led to Pinchas’ act of zealotry. As punishment, Bilam was killed “be-charev” (with a sword). Rashi explains that Bilam had come to provoke the Children of Israel by exploiting their strength—speech.
The Jewish people worship through prayer, and Bilam attempted to counter this by using negative speech, or curses, to undermine them. As a result, he was defeated not by the usual means of Jewish expression, but by the weapon of choice used by other nations—the sword.
Sacrifices and Atonement Through Speech
At the end of Parshat Pinchas, there are detailed descriptions of sacrifices offered in the Mishkan (Tabernacle). These sacrifices served as a means of atonement for sins. A notable passage in the Talmud describes a dialogue between Avraham and God. Avraham expressed concern about what would happen if the Jewish people sinned. God reassured him that they would not be destroyed like the generation of the flood because they had sacrifices to offer for atonement. However, Avraham questioned what would happen after the Temple was destroyed. God responded that studying and reciting the passages about sacrifices would serve as an alternative form of atonement.
This shows that even without physical sacrifices, the spoken word remains powerful. Our recitation of Torah provides atonement, and our prayers define us as a people. Speech, therefore, is not only a tool for communication but also a spiritual force that shapes our identity.
Reflecting on the Power of Words
As we enter the first of the three weeks leading up to Tisha B’Av, it is a time to reflect on the role of speech in our lives. Words have the ability to shape our brains, influence our emotions, and define who we are. They can build or destroy, heal or harm. Let us strive to use our words wisely, with intention and purpose, to uplift ourselves and others. By doing so, we honor the sacred power of speech and embrace its potential to transform both our inner and outer worlds.
